Growing cannabis is often viewed as a relatively easy task, but few take the time to learn about the most important component, the seeds. Growing marijuana starting from seeds can be a daunting task. Luckily we've put together the ultimate guide for growing weed from seeds! Cannabis Seeds for Indoor Marijuana Growing. Best seeds for growing weed indoors. Check out these marijuana seeds for growing cannabis indoors. Weed seeds.
The Ultimate Guide to Growing Marijuana Seeds
Growing cannabis is often viewed as a relatively easy task, but few take the time to learn about the most important component, the seeds. Marijuana seeds come in a variety of different types and getting them started isn’t always as easy as you might expect, especially for beginners, but luckily, you’ve got us to help you out. Here you will learn absolutely everything that there is to know about cannabis seeds including quality, germination, storage, and more.
Types of cannabis seeds
Cannabis seeds is a term that is used loosely to describe any of the different seed types below. They can be of any heritage or genetic line, either strain type (Sativa or Indica), and may or may not have any THC or CBD content. It simply describes the kind of plant and not anything about a specific marijuana plant species.
1. Sativa seeds
Sativa seeds will grow a Sativa subspecies of cannabis. Sativa plants offer a wider range of options including both high and low CBD or THC content. The most significant characteristic of this species of marijuana plants is found in the way that they grow and produce flowers. This type tends to become much taller and spindlier than their Indica counterparts, with an average height ranging between 5-7 feet, and smaller more tightly bound buds that tend to provide smaller yields. These cannabis seeds are not often chosen for indoor grow rooms due to their stature but are frequently preferred for their medicinal use as their stereotypical effects are lighter paired with a higher CBD content.
2. Indica seeds
Another subspecies of the cannabis plant is Indica, which are most widely accepted as the most potent of the two type of cannabis due to its stereotypical sedative effects. The most significant quality to remember about Indica seeds is that they will produce shorter, bushier plants with much larger colas. Their average height ranges between 3-4 feet tall making them ideal for many smaller-scale growers who are limited in space. Indica is often considered to be a favorite among recreational users but also can medically assist in cases of chronic pain, depression, or anxiety.
3. Hemp seeds
Hemp seeds are the only kind of cannabis seeds that will not produce a plant that has much, if any THC content, making them of little use to recreational users. Hemp seeds are most often used as an addition to health food, or as a plant material base to extract CBD from in the making of CBD oils and tinctures that won’t get you stoned but are sought after by medicinal patients. Hemp seeds come in two different categories of their own, including regular hemp seeds and industrial hemp seeds. Regular hemp is what is used for medical reasons, where industrial hemp is grown and harvested for its fibrous nature.
What are Feminized Cannabis Seeds?
These seeds are specifically designed to create only female cannabis plants. Feminized seeds are selectively bred among themselves to produce a seed that has a 99% chance of resulting in a female plant. Since females are generally the only type of cannabis plant that anyone wants, these seeds come at a higher cost but also a significant benefit.
Growing regular cannabis seeds will have a 50% chance of resulting in a male or female which often ends up wasting precious space in a grow room, only to have to be destroyed once they show their sex. This is why feminized seeds are considered to be some of the best cannabis seeds that money can buy.
What are Auto-flowering cannabis seeds?
Auto-flowering marijuana seeds can also be any other kind of cannabis seed listed here. They are created, used, and selectively bred for their incredibly short growing season, with many auto-flowering strains going from seed to harvest in as little as 12 weeks.
All about High CBD seeds
CBD seeds are available for the consumer who enjoys Sativa, Indica or hybrid cannabis strains, and for the hemp grower whose objective is to produce a high CBD content in the plant, choosing the perfect seed selection is imperative to providing an upscale, top-shelf health product. Before a plant can produce abundant crops high in CBD, a stable, productive seed is necessary. The using of a questionable seed can lead to failure by the field full and purchasing questionable seeds can lead to the instability of the CBD plants future.
How to tell the quality of cannabis seeds
There is no real way to tell the quality of marijuana seeds unless you know everything about where they were created, and their journey to you, but since most people don’t, it can help to know what to look for. These questions can help you to assess cannabis seeds, based on visual cues and knowledge that you may have about its history.
1. What color is it?
If your marijuana seeds boast darker color patterns with visible veins, then it’s a good indicator that they may be of good quality.
2. How does it look?
Are there any pieces missing from the shell, or large white areas with no color or pattern? If you answered yes to either of those questions, then you probably have a low-quality seed.
3. How does it smell?
The aroma of a cannabis plant is strong and tends to cling to all the materials including the seeds. Marijuana seeds that still smell like the fresh plant are probably fresh which shows that they are likely good enough quality to grow, but it is no indication as to the plant, that will come from the seed.
4. Where did it come from?
If you get marijuana seeds from a friend who just started growing, then they might be good quality seeds, but they probably aren’t going to offer any of the benefits that specialists create in feminized or auto-flowering option, and they will likely only offer a 50% chance of resulting in a female plant.
5. How old is it?
If the cannabis seeds are more than a couple of years old and or stored improperly, then they aren’t going to be of very high quality.
How to germinate marijuana seeds
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Germinating seeds is easier and less technical than it sounds. What’s important is providing the seed with the optimal conditions to give it the best possible shot at sprouting and becoming a healthy plant. It doesn’t require any special equipment and can likely be done with materials you already have sitting at home. Here we will show you two different methods of germinating cannabis seeds.
1. The Paper towel method
The most widely used by far is the paper towel method. This one will require only 4 things.
- 2 large sheets of paper towel
- 1 large Ziploc baggie
Step 1 – Line 1 side of the Ziploc baggie with one sheet of paper towel. Use room temperature or lukewarm water to dampen the paper towel
Step 2 – Place the seeds with a spacing of at least 1 inch apart evenly across the paper towel
Step 3 – Place the second sheet of paper towel over the top of the seeds, flush with the first.
Step 4 – Use room temperature water to generously moisten the second layer and lift the bag by the corner, so it naturally closes, but do not seal it.
Step 5 – Place in a warm dark spot. It can take anywhere from 2 to 7 days for all the seeds that will sprout to emerge
Step 6 – Once the sprouts are visible, they are ready to be planted
2. The water method
While this one may not be the most popular, it does offer an overall success rate higher than the paper towel method, and some find it easier to separate the sprouts since there is no paper towel to worry about damaging the roots. All that’s required for this one is a glass or jar of lukewarm water and the seeds you are germinating.
Step 1- Fill a glass or jar with lukewarm water. Not hot, too much heat will damage the seeds, and you do not want to boil them.
Step 2 – Add seeds to the water
Step 3 – Store in a warm dark place for 2 days
Step 4 – It shouldn’t take any longer for the seeds to germinate than 48 hours
Step 5 – Once sprouts are visible, they are ready to be planted.
How to germinate cannabis seeds that are aged
Many growers, both experienced and otherwise, will hold onto seeds that were taken from marijuana strains that they really enjoyed in the past. Those genetics will stay safely preserved for many years while encased in a protective shell, but sometimes time passes and they get misplaced or simply forgotten about and then dug up some time later, only for the person to assume they aren’t any good and throw them out.
The thing is, that even if you are having difficulty germinating old seeds, there are several things you can do to achieve a higher success rate and breathe new life into cannabis seeds that might just need a little bit of extra love and care to get started.
1. Water – soil-free method
If you want to revive your old marijuana strains, then you will need to start with a massive dose of hydration. This can happen one of several ways, but the simplest and most common is a soaking in a glass of water to soften the shell and make it easier for the sprout to escape.
Step 1- Drop the weed seeds into a cup of lukewarm water that is ideally 21°C for 24 hours. Watch out for early openers, and if you see any split before the 24-hour mark, remove them immediately to prevent drowning.
Step 2- After 24 hours, remove the cannabis seeds, and place them on a moistened paper towel.
Step 3- Fold the paper towel in half and place it into a Ziploc baggie in a warm room.
2. Fulvic Acid – soil starting method
Not everyone feels comfortable with starting their precious cannabis seeds in water, and for them, there are other options like fulvic acid that can be added after the seed is planted directly into the soil.
Step 1- Plant the seed approximately 1 inch deep.
Step 2- Combine 1 liter of water with 10 milliliters of fulvic acid.
Step 3- Use the mixture to water the soil that the weed seeds are planted in.
3. Carbonated water – soil starting method
Another soil germinating option that works great with aged cannabis seeds is carbonated water.
Step 1- Plant the seeds with spaces at least 1 foot apart and one inch deep.
Step 2- Combine 1 cup of carbonated water with 1 liter of regular water.
Step 3- Moisten the soil that surrounds the weed seeds that have been planted.
4. Germination enhancer – soil starting method
There are specially designed germination enhancers that are edible plant safe and can be used for marijuana strains, and each one will require a different amount of preparation and application. For the best success, it is always recommended that you invest in a cannabis-specific product to avoid unnecessary toxins or other complications.
The most important part of having weed seeds that still sprout nearly 10 years later is mainly in how they are stored. If you are just coming across some old cannabis seeds, then this advice isn’t overly helpful, but if you store them in a sealed, dry, cool space, they can protect the genetics of your favorite marijuana strains for almost an entire decade. Giving you plenty of time to decide when you’d like to grow them.
6. Last ditch effort – sanding
If all else fails, and you have nothing to lose anyway, then there is the risky option of sanding away at the shell to thin it. This is often enough to provide a small boost for sprouts to escape but is rarely recommended as it can damage the integrity of the entire seed if done wrong. If you do decide to try it, make sure that you don’t remove any more than the surface colors before using one the moisture techniques above.
How long does it take to germinate weed seeds?
Fresh marijuana seeds will sprout faster than their aged counterpart and with them, you might notice a sprout appear within only a few days, but the average time you can expect it to take for germination is between 3 and 10 days.
When to plant germinated cannabis seeds
Germination can take a bit of time to complete and your fresh cannabis sprouts won’t be ready for the soil until you’ve seen that at least one or two small fan leaves have developed. That also helps to guide you in the plating process so that you know which direction the shoot is trying to go.
How to plant cannabis sprouts
Transplanting cannabis seedlings that were started in pucks or pellets are the easiest. Just dig a hole into whatever growing medium you are using that is a tiny bit bigger than the inflated puck and bury the very base of the plant to cover the entire top of the casing. If you are using pots instead, you will need to release them from the containers gently. Usually, a gentle squeeze from a couple of different directions is enough to loosen the soil. If you find that alone is not working, you can add water which will soften the substrate. Once it is free, dig a hole that is a little bit bigger than the original pot and plant it in the center of a new large one. 2 gallons or larger are most recommended as destination pots for marijuana plants.
How to store marijuana seeds
To best preserve cannabis seeds, you will need to store them in a dark, cool, and dry area. These babies may be dormant, but they are still very much alive and need to be treated with the utmost care. Marijuana seeds will deteriorate quickly when exposed to heat, humidity, dramatic temperature drops, or rough handling, so storage in a fitting or soft-lined container in a cool (not cold) dark space is ideal.
How long will marijuana seeds last in storage?
It is always best to use your marijuana seeds within a couple of years of obtaining them, as even if they are stored perfectly, age will slowly harden the shell and make them more difficult to germinate. However, a good quality cannabis seed stored under the right conditions can last more than 10 years, and still be viable, so don’t be too quick to toss your stash just because it’s been kicking around for a while. You can also store them in the freezer but going that far isn’t typically needed if you follow the tips laid out here.
Cannabis seeds vs cannabis clones
Cannabis clones do offer several benefits that seeds just cannot provide, like skipping right over germination and the plants staying smaller and more manageable, but they also cost a whole lot more while remaining nearly impossible to find from a legal vendor. Marijuana seeds are cost-effective, resulting in the strongest root systems, and don’t take much to get sprouted, so they are often the preferred choice for both beginner and expert level growers.
Cost of cannabis seeds
There are so many things that can influence the price of a marijuana seed, that there is no way to provide an average across the board. Those that require a stricter, more in-depth process like feminized or auto-flowering seeds, can cost hundreds of dollars each if they are from a popular strain, but there are much more budget-friendly options as well with some selling for as little as $10 each.
Where to buy cannabis seeds
Right now, the rules and regulations surrounding the sale of marijuana seeds restrict the average person from selling them privately, so the safest way to buy them is directly through your local government-regulated cannabis dispensary, by visiting them in person, or online.
The legality of cannabis seeds
Only federally and provincially approved vendors are legally allowed to sell cannabis seeds, so it is important to research a provider thoroughly before placing an order. That means your options are relatively limited for buying, but marijuana seeds can be traded or gifted legally, so a great alternative option is to join a seed exchange program where you can connect with other like-minded individuals and legally trade products.
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Grow Weed Starting From Seed
“Don’t judge each day by the harvest you reap but by the seeds that you plant.”
Growing your own cannabis plant starting from seed is a remarkable journey. Understanding the biology of the plant is one thing, but comprehending how a little miracle bean can turn into a gigantic tree producing flowers that can affect your body and mind is nothing short of an evolutionary miracle. Or rather a co-evolutionary story of plant and human.
Start Growing Weed From Seed
Our favorite thing about growing your own weed starting from a seed , rather than a clone, is that you get to see the full life cycle and enjoy a plant that is unique, just like you. An entirely new genetic makeup will enter the world for the first time, and if you’re lucky, something remarkable might be born.
Raising a cannabis seedling , however, requires some patience, gentle hands, and a smidgen of luck. Thankfully pot seeds are remarkably vigorous because they are what’s called endosperm seeds , which means they have almost pre-formed cotyledon leaves before you even add water. Below is a brief guide on the techniques we have found yield the most success when starting seeds and raising your seedling to a healthy plant ready for transplanting. And, don’t forget, a Pot for Pot’s Complete Grow Kits take the guesswork out so you always wind up with a splendid harvest!
1) Germinating Your Cannabis Seed
To accelerate germination, soak your seed in a small container with lukewarm water and place it in a dark and warm place (like a kitchen cabinet) for 12-24 hours, but no longer. By drenching the seed, it absorbs the water thoroughly, activating the germination process on a physical and chemical level. Doing this helps to loosen the shell as it becomes a little softer making it easier for the embryo to crack it open. When your seed sinks to the bottom, it is ready to be planted, and sometimes the seed will pop out a small taproot. A seed can still be planted though if it does not sink or put out a taproot. When a seed pops a taproot (often called a tail), it becomes more vulnerable and it is better to plant it before this root emerges.
2) Planting Your Weed Seed
We see best results with seedling pellets that are made of a mix of compressed peat moss and coco husk. To expand, soak it in water for 10 to 15 minutes. Using warmer, lukewarm water, instead of cold water, will speed up the time the pellet takes to fully expand. Once your seedling pellet has absorbed enough water and has expanded to its maximum size, gently squeeze to remove excess water. The growing medium should be like a damp sponge that would not leave streaks on the table. Dig a small hole about 1/4 inch deep for your seed. Use a spoon to lift the seed out of its bath. If it has popped out a taproot be careful not to damage it. Gently place the seed into the hole and lightly cover it with dirt from the pellet. Now that you have started the germination process, your seedling will come above ground within two weeks. The older the seed, the longer it takes for it to germinate.
Want an easy-to-use starter kit for Cannabis seedlings? Check out our Seedling Starter Kit, perfect for nurturing your germinated seeds into viable, healthy plants.
3) Weed Seedling Sprouts
Perhaps the most exciting stage, your plant baby will come above ground in 1-2 weeks, with the average popping up in 5 to 7 days after planting. As your seedling comes above the soil, its shell might take a few days to fall off. It’s best to leave it alone, nature has the job covered. If it does not come above ground after about two weeks, the chance of success is dramatically reduced, and it’s best to try again. Even the best seeds have an 85% germination rate. When your seedling comes above ground, it is going to want to see a direct light source.
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4) Lighting for Your Cannabis Seedling
Marijuana seedlings require a medium amount of light — enough to get energy to grow, but not too much light that to get burned. Leaving your seedling in direct sunlight will cause the leaves to curl, while too little light will cause the seedling to stretch. If growing outside, seedlings want to see a direct light source to stop them stretching. If inside, a sunny windowsill with more than half a day of sunlight works wonders. Otherwise, 24 to 30 inches from a grow light is an excellent supplement. Your seedling should not stretch more than 6 inches at most.
5) Watering Your Cannabis Seedling
For cannabis plants young and old, it’s best to use bottled, distilled, or filtered water as these are without chlorine. If using tap water, let it sit for 48 to 96 hours before watering to dissipate any chlorine. Chlorine can also be eliminated by boiling for 20 minutes. Under normal conditions, after soaking your seedling pellet, it should contain all the moisture your plant needs before it comes above ground. As it grows, it will only need about a shot glass worth of water at most per week to keep the medium damp. Seedlings don’t drink a lot of water, which makes sense given their size. Your plant will do better in a growing medium which is damp but not soaking wet. Overwatering is just as deadly as drying out!
Damping off happens when the seedling is in too moist of an environment. The young plant’s immune system is not strong enough to ward off a fungus that results in the plant rotting from the bottom of the stem. When this happens, the plant will bend over and die if not treated. To help fight the infection, lightly spray a 0.5% solution of hydrogen peroxide around the affected area. However, the best option is to avoid this by not exposing your seedling to too much moisture.
6) First Cannabis Seedling Leaves & Hardening Off
The first set of leaves to come above ground are called the cotyledons . These little leaves are packed with energy and will grow to about 1/4 in in size before eventually falling off. Your second leaves to emerge will be single blades and will be serrated, looking like regular pot leaves.
They will become several inches in length. During their growth your first actual set of leaves will appear. These are typically three blades. Around this time is when your plant is “hardening off”. You will notice that the stem will start to develop a thicker skin and harden off. As the leaves of the plant get bigger, they can gradually handle more sunlight, so move it into more direct light– the more light the better!
7) Transplanting Cannabis Seedlings
About 10 days after germination, when the baby cannabis plant has hardened off, roots will start emerging from the bottom of your seedling pellet and the plant is ready to be transplanted into a bigger pot. Be very careful not to damage the roots during this stage. Any stress will slow its growth.
Dig a small hole in your bigger pot for the seedling, sprinkle some rooting booster in the bottom of the hole then carefully plant the whole seedling pellet holding your weed baby.
Now bury so the base of its stalk is level with the topsoil. Give it a watering to set the roots in the ground, then hold off watering until you pick up the pot and it feels light in weight.
Are you ready to transplant your seedlings? Shop our best selection of cannabis starter growing kits from small to large pots.
8. Separating the Girls from the Boys
At about 4-6 weeks into your plant’s growth , you’ll be able to determine the sex of the plant. You’ll want to separate and dispose of any male plants. This is an important step for growing marijuana because the female plants are more potent and valuable. You also don’t want male plants to compromise the growth of your female plants.
Why Do You Only Want Female Weed Plants?
Only female marijuana plants produce THC buds that are high in potency. You want to make sure your Cannabis plants are all female. If you have a male plant, it can fertilize the other female plants, and they will work to produce seeds instead of flowers and nugs.
It’s essential as a grower to know the difference between a female and a male plant so that you can remove the male plants before they contaminate your crop . Unfortunately, you have a 50/50 chance of getting a male plant when growing a plant from a seed from a nug.
There is a massive market for seeds that will only grow into female plants. But even these seeds are not a 100% guarantee you’re going to get a female plant. To ensure a good crop, you’ll want to germinate and plant many marijuana seeds and then separate the females from the males when the plants begin to show their sexuality.
How to Tell if a Weed Seed is Male or Female
As your plant matures sexually, it will develop between its nodes. Nodes are the area of the plant where the branches connect to the plant’s stalk. The distinguishing characteristics that will help you identify your plant’s gender:
- Male Plants : Small pollen sacs will cluster in the nodes.
- Female Plants : Stigmas will develop in the nodes. The stigmas can catch the pollen of male plants. Stigmas have hair-like veins that will extend from the sacs in the nodes.
- Hermaphrodite Plants : These plants have both the stigmas and pollen sacs in their nodes. These are female plants that develop both sex organs when exposed to a lot of stress.
Once you can identify the sex of your plants, you’ll want to remove the male or hermaphrodite plants because they can negatively affect the harvest of your female plants. That’s why it is crucial to germinate and grow several cannabis plants to this stage to ensure you get at least one healthy female plant.
9) Grow Weed Plant, Grow!
Suddenly, before your very eyes, the plant will transform. She will grow in height and branch out, putting off leaves and a network of branches. It is your job as the grower to meet her needs so that she can reach her full potential. With a good grow kit, this means as much light as possible and lightly watering only when she is thirsty.
This is considered your marijuana plant’s vegetive stage. The goal in this stage is to keep her healthy and allow the plant to grow as big and strong as possible so that she can hold many, many flowers.
Our complete grow kits include everything you need to go from seed to your very own supply of high grade medical cannabis.
20 Great Cannabis Seeds for Indoor Marijuana Growing
Check out our handy guide on how to grow marijuana indoors and 20 great cannabis seeds for indoor marijuana growing. Growing marijuana indoors involves strong lights, fans, irrigation systems, and other cultivation equipment needed to provide marijuana plants with the right light, water, and nutrients to grow to their fullest potential.
What Is Indoor Marijuana Growing?
Indoor marijuana growing doesn’t just mean putting a marijuana plant next to the windowsill and hoping for the best. Indoor growing requires growers to mimic outdoor environmental factors such as sunlight, rain, and soil conditions. Indoor growers can equip themselves with lights strong enough to give energy to plants and the right soil conditions for optimal nutrient intake.
Indoor cultivation gives growers ultimate control over all of the elements that affect a cannabis seed’s yield, flower density, trichome production, and overall quality. Indoor growers aren’t beholden to the natural climate or season. Furthermore, cannabis crops are safeguarded against harsh environmental conditions such as wind, rain, and snow and predators.
Factors to Consider When Choosing Indoor Cannabis Seeds
When growing marijuana indoors, you’ll need to consider the most basic elements of a grow set-up starting with which cannabis seeds to buy for an indoor grow. The type of cannabis seeds you choose depends on your cultivation experience, budget, strain preference (sativa, indica, hybrid), and size of your growing space.
Here, you’ll find a list of 20 great cannabis seeds for indoor growing along with the strain’s ideal growing conditions.
Autoflowering Cannabis Seeds For Growing Indoors
Some growers may even use autoflowering seeds, which don’t require a photoperiod to flower like most marijuana seeds. Photoperiod marijuana seeds need a certain amount of light and darkness per day, usually a 12/12 cycle to transition from their vegetative to the flowering strains. For light-deprived locations, autoflowering strains will automatically flower at a set period.
1. Sensi Skunk Automatic
Sensi Skunk is a great cannabis seed for beginners and budget growers. Sensi Skunk Automatic allows beginners to take a low-maintenance approach to grow. This autoflowering seed features many of the same Skunk characteristics that have made its parent a favorite among growers and critics.
Sensi Skunk Automatic is bred from a curated ruderalis strain that enables the strain to begin to flower without a photoperiod. Sensi Skunk should autoflower after about five weeks. The seed grows short and stocky plants with big buds. Harvesting can occur about 50 days later. Experience a citrusy and sweet aroma with uplifting and stress-relieving effects.
2. Super Skunk Automatic
Super Skunk Automatic is ideal for medicinal users who want to plant as much medicine throughout the year as possible. Super Skunk Automatic provides users with strong indica effects without leaving you glued to the couch. Novice growers will appreciate how easy this strain is to grow and the relief it can bring for stress and pain.
For growers who can’t or don’t have the energy to maintain a finicky plant, the Super Skunk automatically begins to bloom after about four weeks regardless of changes in photoperiod. This automatic strain can be grown in a variety of areas such as windowsills. Super Skunk’s flowering period takes about 65 days and produces an average yield.
3. Northern Lights Automatic
Northern Lights Automatic is a great cannabis seed for growers with some experience who want to push their skills to the next level. Northern Lights Automatic is worth the effect due to its robust effects. This autoflowering strain is relatively easy to grow and produces award-winning effects and aromas.
Northern Lights Automatic grows short and just over three feet. Its flowering period is about 55 days and its seeds begin to flower after about a month or sooner. Northern Lights Automatic can produce harvests with dense and trichome-rich buds up to three times a year due to its autoflowering characteristics and flowering periods.
4. Gorilla Glue Automatic
Gorilla Glue Automatic has won multiple industry awards for its extreme trichome production that can leave trimming shears glued stuck. Gorilla Glue Automatic can reach a medium height with a dense bud structure. This autoflowering strain is easy to grow for beginners and produces a sweet and pungent aroma.
Gorilla Glue Automatic’s grow time is between 50 and 60 days and produces a plant reaching almost 40 inches. Gorilla Glue exhibits relaxing and euphoric effects, perfect for medical conditions such as pain, arthritis, stress, nausea, and epilepsy. Be careful, Gorilla Glue has a very high THC content.
5. Girl Scout Cookies Automatic
Girl Scout Cookies Automatic combines classic GSC and ruderalis genetics to produce a high-quality autoflowering strain. This indica-dominant autoflowering strain grows into medium-size plants that respond well to training. Expect trichome-rich and sweet-smelling buds that produce cerebral and physical effects.
GSC Automatic’s grow time is between 60 and 70 days from seed. Plants can reach up to 35 inches in height and produce up to seven ounces per plant. GSC Auto is easy to grow, but can produce an extremely pungent aroma. Carbon filtering can help keep your indoor grow more discreet.
6. Green Crack Automatic
Green Crack Automatic is an autoflowering marijuana strain that blends the iconic Green Crack genetics with a ruderalis. The resulting Green Crack Automatic strain grows short and stout with extremely white buds and a delightful citrus and mango aroma. Green Crack Automatic delivers users energizing effects.
Green Crack Automatic’s grow time is about 63 days from seed and can grow up to 35 inches tall. Green Crack Auto is an easy-to-grow strain that produces moderate-to-high yields indoors and outdoors. After eight to nine weeks, these autoflowering seeds can deliver the right dose of medicinal relief to lift your spirits.
Feminized Cannabis Seeds For Growing Indoors
Feminized cannabis seeds for growing indoors will only produce female cannabis plants, albeit, they require a photoperiod to begin flowering, unlike autoflowering strains. Feminized plants eliminate the possibility of growing a male plant that can pollinate your entire grow. Many feminized seeds can thrive in indoor conditions.
7. Big Bud
Big Bud is an excellent feminized cannabis seed to grow indoors due to its very high yields and dense buds. Big Bud was popularized in the 1980s and continues to be one of the hardest-working seeds out there. This indica-dominant variety has a hash-like flavor and aroma and slightly sedative effects.
Bud Bud has a flowering time between 50 and 65 days. This feminized seed can grow to an average height and have a growth spurt during bloom. Bid Bud prefers warm weather and can thrive indoors under a hydroponic setup. Its thick stalks help support its heavy bud production. Sea of Green (SOG) techniques can be used for speedy growth.
8. Silver Haze #9
Silver Haze #9 is a sativa-dominant strain from Sensi Seeds that can be grown indoors. Silver Haze is commonly available as a feminized seed. This classic and award-winning haze strain produces a cerebral high and a complex bouquet of scents including citrus, berries, mint, and other sweet fruit.
Silver Haze #9 has a flowering time of about 70 days. Silver Haze #9 can grow well under lights. It can grow tall with heavy resin production and long buds. Silver Haze #9’s strong growth allows growers to grow these plants in close proximity. Silver Haze #9 also responds well to bending and training.
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9. Amnesia Haze
Amnesia Haze takes traditional Dutch genetics and elevates them to produce a euphoric and cerebral head high like other haze varieties. Amnesia Haze thrives in indoor growing conditions, but has a relatively long flowering time. The wait is worth it. Amnesia Haze can produce a high yield under optimal cultivation conditions.
Amnesia Haze prefers consistent warm temperatures and has a ten-to-eleven-week flowering time. Growers are advised to keep indoor temperatures between 70 and 80ºF. Amnesia Haze plants must be well-ventilated to prevent mold and pest problems. This feminized seed produces a citrusy and sweet-smelling strain with powerful effects.
10. White Widow
White Widow is an excellent cannabis seed to grow indoors. With roots in the Netherlands, White Widow was developed from a pure Brazilian sativa and an indica hybrid. White Widow’s seeds are easily available and are great entry-level seeds for beginner growers. White Widow can withstand cooler climates.
White Widow produces a pine-scented cannabis strain and has a flowering time of eight to nine weeks. White Widow grows into a stocky, but high-yielding plant with resin-covered buds. Growers recommend using the SCROG technique with White Widow. White Widow can grow in soil or hydroponic setup.
11. Power Plant
Power Plant, from the Dutch Passion Seed Company, originated from South African sativa seeds. Due to its hardy genetics, Power Plant grows fast compared to most sativas and grows medium-sized flowers with popcorn buds, too. It has a woody and earthy aroma that can give you a calm and clear-headed high.
Power Plant’s flowering time is between seven and nine weeks. Power Plant seeds can grow well under SCROG methods. This plant can grow tall so consider your grow size. You can prune the plant to keep it growing nice and strong and save the trim for other cannabis infusions.
Critical is an overall excellent marijuana seed to grow indoors or outdoors. Critical seeds produce a high yield, are easy to maintain, and create a heavy coat of resin over its dense marijuana buds. Critical allows users to feel more relaxed and blissful.
Critical has a flowering time of about seven weeks. Its relatively speedy flowering time makes it a great strain for those who want to grow as fast as possible. Critical produces a plentiful crop with its tall plants, long leaves, and rich resin production.
Regular Cannabis Seeds For Growing Indoors
Regular cannabis strains can produce either a male or a female plant. There are many regular cannabis strains that can grow indoors. Below, you’ll find a list of the best cannabis seeds for indoor growing.
13. Jack Herer
Jack Herer is a great cannabis seed for indoor growing. Whether you’re a first-time or long-time grower, Jack Herer is an easy-to-grow sativa strain that delivers clear-headed euphoria and eases muscle tension. Enjoy its earthy, lemony, and peppery aroma mixed with woody and fruity flavors.
Jack Herer’s flowering time is about 65 days and can grow very tall. Jack Herer grows exceptionally in hydroponic systems. It grows bushy, so make sure there is enough space between your marijuana plants. Also, make sure you have enough height to support its growth and watch out for heavy branches that can snap.
Chemdawg has been a popular cannabis seed since the 1990s. Chemdawg is the parent strain to many of today’s best-selling strains including Headband, Sour Diesel, and OG Kush. This indica-dominant strain is easy to grow and can handle stressors well. Chemdawg produces dense buds packed with trichomes and a fruity and diesel aroma.
Chemdawg’s flowering time is about 63 days, a relatively quick grower compared to other cannabis strains. Chemdawg does well when trained in a SCROG environment to increase the yields in a small space. SCROG requires growers to prune the foliage from the base to improve airflow. Chemdawg is vulnerable to mold.
15. White Russian
White Russian seeds by Serious Seeds is an indica-dominant hybrid with AK-47 and White Widow genetics. White Russian seeds produce a high bud-to-leaf ratio with compact and trichome-heavy colas. White Russian strains deliver a long-lasting and cerebral buzz along with a deep sense of relaxation.
White Russian seeds grow into medium-height plants and produce a very pungent smell. It has a flowering time between eight and nine weeks. White Russian doesn’t require as much maintenance as other cannabis seeds and can flourish in a warm environment.
16. Maple Leaf
Maple Leaf cannabis seeds by Sensi Seeds is a legendary Aghani strain that was smuggled out of the country around the late 1970s. This pure indica is fast flowering and develops compact plants, large leaves, and dense buds that have an excess of resin. Enjoy its citrus aroma and taste, as well as its sedating effects.
Maple Leaf’s flowering time is between six and seven weeks. Maple Leaf plants resemble sativa plants with its tall-growing characteristics and dense and elongated buds. Try your hand at growing Maple Leaf in soil or hydroponic setups. SCROG methods work well with this strain, too.
17. Hindu Kush
Hindu Kush is a pure indica strain that came out of the Hindu Kush mountains in Central Asia. Since the 1980s, Hindu Kush has been a stable strain that produces medium-height plants and dense buds. Hindu Kush strains exhibit a woody smell along with notes of hash and a calming body high.
Hindu Kush has a flowering time between six and seven weeks. Hindu Kush grows short and bushy with dense flower buds. With a hydroponic set-up, Hindu Kush can produce large buds with tons of resin. Use a SOG (sea of green) technique to maximize your yields. Just make sure you keep the airflow optimal to avoid mold.
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