Question: How tall do weed plants grow
When considering the question of how tall do weed plants grow, the answer is really as long as a piece of string – or perhaps a joint of weed! There is an enormous variation between different strains of cannabis – from compact bushes to leggy giants – and how they are grown can also make a difference to the overall height. Let’s look at the heights you can expect a typical weed plant to achieve when grown indoors or outside, and the impact various techniques can have on height.
Sativas, Indicas and Ruderalis
These are two main strains of cannabis, although there are many hybrids which combine genetics from both. There are many visual differences between Sativas and Indicas, and one of the most obvious is height. Sativas can grow extremely tall, to twenty feet and is slower to grow and reach harvest. Indicas are compact, bushy plants that typically reach heights of between three to six feet. Hybrids vary enormously; we recommend reading information about the strain before your purchase to find out whether Satia or Indica is dominant when it comes to potential growth. The other strain of cannabis is Ruderalis, whose genetics are often found in autoflowers, and this is also a short plant similar in size and shape to Indica.
Cannabis height when grown outside
If you were to leave a Cannabis Ruderalis strain to grow outdoors in favourable conditions completely unchecked, a single plant could easily achieve heights of 20 feet and a breadth of two to three feet. The only limitations are the amount of root space in the soil and the number of hours light in a day. If you have the space and inclination, it is easily possible to grow a forest of truly gigantic weed plants.
Cannabis propensity to grow means that its height needs to be carefully controlled by you, the grower, without affecting the health of the plants and the quality of the yield.
The optimal height for weed grown indoors
If you cultivate your cannabis plants indoors, their final height is in your hands. Although it may seem contrary, it is not worthwhile allowing your plants to get past a certain height, unless you have enough grow space. There are several reasons for this:
- The largest buds are found at the top of the plant nearest the light source. Buds get progressively smaller down the plant. To maximize yields, you need to ensure that light can penetrate as much of the plant as possible, which is where the various training methods come in.
- Extra growth results in a long, lanky plant without any extra yield, which is really a waste of time, money and electricity!
- Plants that are too tall can attract unwanted attention when grown outdoors or if there is limited indoor space.
There are several methods you can use to control the height of your weed plants:
- Low Stress Training (LST)
- Screen of Green (Scrog)
1. Low Stress Training (LST)
LST is an easy and inexpensive method of training that simply involves bending the growing stems in the direction you want them to grow and gently tieing them in place. LST enables light to reach more buds by creating a more even canopy.
2. Screen of Green (ScroG)
ScroG works similarly to LST but involves a screen, net or trellis against which the cannabis plant is encouraged to grow horizontally. This method also creates more budding sites by stretching out branches to expose more nodes to the light.
Topping a type of pruning that takes place just before the plants enter the flowering phase. Get some pruning shears and top all the branches to rein in the stretch that takes place during the flowering phase. This might sound drastic but will encourage the plants to focus their energies on producing flower heads rather than wasting energy on growing upwards.
Follow these tips to prune safely:
- Wait for a minimum of 3 layers of leaves before cutting;
- Always use a pair of clean, sharp scissors or secateurs;
- After cutting, there should always be enough leaves left to allow the plant to breathe and photosynthesize;
- Don’t worry if the new growth turns light green after cutting; this is normal!
There really isn’t an optimal height for cannabis, it depends on your personal preference, space and growing set up. Ultimately, if you want to maximise your yields, it pays to learn as much about the strain as possible, and this includes expected height.
Curious how big weed plants grow indoors or outdoors? Check it out and find all the answers you need!
Gigantic Marijuana Plants
- Escrito por : Ciara
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Cannabis crops are some of the most versatile crops on the planet, capable of adapting to almost any growers needs thanks to the amazing variation in how long some strains take to grow versus others. You can find spectacular autoflowering strains that are ready to cut in just about two months of cultivation, and then you can also find seasonal strains that need certain photoperiods (periods of light and darkness) to grow and flower. Today we’re going to talk about some tips and tricks to grow gigantic marijuana plants; to do this they’ll need a longer growth period and a whole lot of care, but you’ll be rewarded with the biggest specimens that you have ever seen.
Many growers have already seen astonishing images in which American growers are standing beside incredible 4 or 5 meter tall marijuana trees with an enormously dense branch structure that end up looking like big green balls. This phenomenon is quite typical in Humboldt’s seed catalogue and other American seed banks, as well as professional growers books and of course thousands of images and videos online.
Choose a good strain
Choosing a strain with a decent growth level is essential because your plants entire structure will depend on this specific characteristic. Sativa strains tend to have a much larger growth as well as a larger distance between nodes and a thinner, taller structure. Indicas, however, grow into more manageable plants with shorter distances between nodes, more branches and a stronger central stem.
Indica and sativa hybrids obviously have characteristics from both genotypes, although depending on the strains used to create the hybrid and the percentage of indica vs sativa, they’re more likely to have certain characteristics. Generally, the biggest specimens will have a sativa percentage of over 60%; if the plant is indica-dominant then the specimens will be more compact but with a larger branch structure.
Make sure they get a good growth period
Growth timing is definitely a key element when trying to grow large plants due to the fact that once your plants move on to the flowering stage, they tend to get a lot bigger. This means that the bigger your plant grows during its growth stage, then the more they will develop during the flowering stage.
For outdoor crops, growers have to depend on the seasons and the climate for their plants to switch periods, whereas indoors the grower decides when to change the light period, allowing him or her to choose how big their plants should grow. This means that indoor growers can play around with the number of plants and the timing of their crops; with a shorter growth period you can have more plants. This is how SoG systems were born; cuttings don’t need a growth phase and seeds only need two growth weeks.
There are also growers that like to fill their crop area with just one plant, giving it an enormous growth period as well as a large flowerpot; this makes for plants that would leave outdoor growers astonished. Some seed banks keep mother plants for over 10 years, so we know that you can give your plants all the growth time you want and rest assured that they won’t die (if you take care of them properly).
So, now that you know that you can grow plants indoors for as long as you want, and that outdoors marijuana plants grow a larger branch structure, the question is: What would happen if you let your plants have a long growth period and then took them outside to flower?
When you grow your plants indoors and then take them outdoors they go from getting 18h of light a day to getting a lot less, so they immediately begin flowering. If it’s still growth season your plants will begin budding but then they’ll revegetate, losing potency in the process which is something you want to avoid, especially with a crop like this that takes a lot more work.
However, if you take your plant outdoors to flower when the sun begins to set earlier, your plants will begin flowering normally and should be ready around the same time they would be ready if you had planted them outside from the beginning. The obvious difference is that these plants will be much larger and have a much higher yield; by using this method you can get plants that are over 4m tall.
Increase the number of branches through pruning
If you use the previous method it’s not hard to get gigantic plants, but large plants don’t necessarily have a lot of branches. If you’re looking to increase the number of branches on your plants then you’ll need to consider pruning them.
It’s actually quite common for indoor growers to prune their plants every now and then when they’re employing a long growth period. If done properly without stressing your plants too much, then your plants should grow various new branches per pruning. All you’ll need to do is use a revitalizer on your plants to reduce stress and a couple of weeks after pruning more branches will have grown. If you’re thinking of using a growth period of a few months then you’ll have enough time to repeat this process a good few times. Once they begin flowering the amount of branches will obviously be higher, making your plants incredibly leafy and bushy.
Stake or string your plants to increase strength
Staking plants is essential if you want them to develop correctly and constantly, so you’ll need to start doing it during their first few days. You’ll need to start by staking the trunk and then wiring the branches that grow, which will give a higher yield thanks to being held up.
When your plants have reached the production levels that we were talking about before, the stakes or string you’re using might not be strong enough to put up with the weight of the branches and buds; one of the most recommended systems is by using metal meshes. By doing this you can hold up each branch individually and with less stress on the mesh due to the fact that the weight of the plant will be evenly distributed. It’s also pretty easy to set up, all you have to do is extend the mesh over your plant, placing each branch in a hole making sure that light can still access all of them.
So, now you know that if you want to get monstrously huge plants you have to consider the strain, give them a much longer growth period, prune selectively, and make sure that it can deal with the weight of all of those amazing buds. If you follow all of these tips you’re guaranteed to produce enough per crop to keep you going in between seasons. We recommend using organic fertilizers to increase flavor and cannabinoid levels in your plants, so that way your gigantic marijuana plants will have an extremely high production rate as well as powerful and flavorful buds.
Learn how to grow gigantic marijuana plants, you'll get an enormous yield without using any chemical fertilizers that could alter the final product.