cannabis buds not dense

How To Grow Cannabis With Dense Buds

Producing dense, resin covered buds is every cannabis grower’s dream. Well, don’t let your dreams be dreams – here is all you need to know about growing dense buds of your own.


Cannabis is a strong plant capable of surviving extreme conditions. However, this doesn’t mean large, dense yields are guaranteed without the constant care of the cultivator. Ensuring the correct conditions for optimal growth are maintained should be the main priority for any grower, especially if they want dense bud.

The main causes of an underwhelming crop are bad lighting, poor nutrition, or extreme temperatures. Letting just one of these factors get out of control – especially towards the end of a plant’s life cycle – can drastically impact the quality of the bud. We are going to take a look at each in turn, and see how they can be controlled to produce the best yields possible.


Light Intensity

Maintaining an optimal light intensity is crucial. The more light buds get, the bigger they grow. Never let lights be too close or too far from the top of your plants – to close and plants risk being burnt by the heat, to far away and the light will not be strong enough. Ideally, lights need to be positioned so the whole canopy of the crop receives light, but close enough that they can benefit from increased intensity without burning. A good test is to place your hand at the top of your plants. If the heat produced by the lights are uncomfortable for you, they are uncomfortable for your plants.

Light colour

Cannabis is able to use certain light frequencies more effectively than others at certain stages of its life. Check out your flowering bulbs colour emission; most manufacturers put the details on the box of the bulb. During the flowering stage, cannabis utilises the red frequencies of the light spectrum most efficiently, so using a bulb with a high output (660nm is ideal) during flowering will help boost the amount and density of bud. However, it is important to note that cannabis uses the entire spectrum to some degree, so bulbs should be full spectrum with the red enhanced, not simply red. We have written an article outlining all you need to know about the light spectrum and cannabis, should you wish to find out more.


The Correct Temperature For Cannabis

It is important that temperature stays within the right range. Average and peak temperatures should never be too low at night and, most of all, never go above 30°C during the hours of light. Ideal is between 18°C and 26°C. Temperatures that are too hot stunt flowering and can seriously damage buds. In outdoor cultivation, high temperatures can be an issue if flowering has been forced early in the season. Screening and water spraying the plants helps them bearing July and August high temperatures.


Closely tied in with temperature, it is important that humidity also remains within acceptable bounds. Never surpass 60% in the flowering phase and try progressively reducing it down do 45% in the last 2-3 weeks before harvest. The plant will go into overdrive as it seeks to protect its flowers, responding by producing denser buds and more resin on them. Lower humidity will also help avoid mould formation.


Feeding Cannabis

Each strain has different feed requirements, so getting to know just how much feed a plant needs, and when to change amounts, comes with time and experience. However, generally, cannabis requires higher levels of nitrogen during the vegetative stage to push growth to the max, followed by higher levels of potassium during the flowering phase to fuel bud production. It is always a good idea to keep an eye on the pH of your growing medium, as it can affect nutrient uptake.

Everyone wants bigger and denser flowers. Here are some steps to achieving it.

Make cannabis buds harder and more dense with one simple operation

A week or six ago, we asked Doc Green, to test a technique on one of his cannabis plants that would make the buds thicker, more compact and heavier. Although at first it sounded incredible, the simple intervention did really produce spectacular results.

It seemed too good to be true, with a single action making it possible to harvest more weed. That is why we asked Dr. Green to test the technique. He applied the trick to one of his Night Queens and was positively surprised by the extreme amount of trichomes that the plant subsequently produced.


In the case of Dr. Green, the buds did not grow significantly thicker, but they did produce more resin. The buds on the plant in question are also considerably more dense than those of the other plants. Below you see on the left a bud that is not treated, and on the right one of the buds on which Dr. Green did apply the technique, the difference can be clearly seen. The bud on the right seems more white and the leaves also contain much more trichomes in the treated plant.

Bud Swelling

The technique with which Dr. Green experimented is called Bud Swelling, it’s surprisingly simple and goes as follows: Once the cannabis plants get their first real bud around the third week of the flowering phase , you start with it. Don’t be scared but you should remove the upper part of the bud. It may seem scary, but in the end you just cut away a very small piece, about 3 millimetres. Below you can see how Dr. Green did it.

Next, according to this movie it is the intention that you repeat this every 10 to 14 days. You probably can also use one treatment because according to other manuals one treatment is sufficient. Doctor Green is enthusiastic and will apply it more often.

Bud Swelling in the picture

Below you can see three videos in which the technique is used. In the first video the technique is demonstrated and in the other two you see the surprising result. The treated buds have clearly become much thicker by cutting the buds. As you can see, it does not only work for indoor cannabis plants, but also for outdoor cannabis. Take advantage of it!

Make cannabis buds harder and more dense with one simple operation A week or six ago, we asked Doc Green, to test a technique on one of his cannabis plants that would make the buds thicker, more