How to


How to Grow Dense Cannabis Buds

Cannabis growers spend a significant amount of time, money, and energy, attempting to perfect their growing room conditions. The best cannabis growers continue to perfect the details of their rooms to get a higher volume of bigger buds with better bud density.

Accounting for critical factors, like picking quality cannabis seeds from trusted seed banks, providing enough light, sufficient nutrients, and adequate airflow, growers, can significantly increase bud density.

By making sure to prune and trim away unnecessary leaves in the vegetative stage and again in the flowering stage, cannabis growers create several trichome-rich dense buds instead of one main cola with fewer big buds overall.

With that in mind, let’s take a closer look at some of the best ways in which you can achieve a greater density of cannabis bud.

Brighter Rooms Make Bigger Buds

Fewer factors are more critical for bud density than providing enough light for each marijuana plant in the grow room. Grow lights serve many purposes and have advantages and drawbacks that all growers must consider.

Lighting arrays use HPS, CFL, and LED lighting arrays to offer plants the required light intensity lighting during both vegetative stages and flowering stages of life. Grow lights should not create heat stress in the grow room, which is why HPS and CFL lighting arrays are falling out of favour with experienced cannabis growers.

LEDs offer enough light to grow high-quality, dense buds and ample bud production. Direct light is the name of the game, and that’s why experienced growers will also prune cannabis plants. Not getting enough light to bud growth sites is a recipe for airy buds. For this reason, many growers use LST or low-stress training in a SCROG set up to ensure more light penetration.

LED offers strong enough light to produce the same high-THC, dense buds using a fraction of CFL & HPS bulbs’ power. Low power means less heat stress, more stable humidity levels, and less light intensity to burn the crown nugs of any fast-growing cannabis plants.

Grow room LEDs are programmable to mimic light changes through the seasons, which growers favour to target denser bud growth with more trichomes.

Cannabis plants in the vegetative stage aren’t growing any big buds yet, so the energy should be spent developing robust root systems and leaves, with blue and ultraviolet spectrum light.

Cannabis plants most readily absorb red light to grow during the flowering stage, so the peak range for active photosynthetic radiation happens around 700-740 nanometers, which will help cannabis growers produce dense buds.

There’s an extensive range in which the more intense light growers offer their cannabis plants, the more dense buds they’ll produce, as long as growers balance providing enough light with other growth factors.

An exception to this rule is that cannabis plants require good spacing to have both adequate distance from the grow lights, as well as proper spacing between the other plants to allow for optimum airflow.

Denser Cannabis Buds are a Breeze

Marijuana plants will perform better when the grow room airflow creates a nice breeze for them to enjoy.

Cannabis is a wind-pollinated crop in nature, so buds that get fresh air and direct sunlight have always had higher THC and bud density. Air and light are integral parts of a cannabis plant’s diet.

Proper airflow disperses moisture, which if left unattended could cause mould or mildew. Airy buds with low and poor bud density levels are possible when growing conditions were favourable, but the plants were too crowded during the flowering phase.

Humidity control is crucial, and airflow is one of the main tenets of humidity control in your cannabis grow room. Airflow also sends signals to your cannabis plants’ roots that drive roots to grow deeper and stronger to support more robust cannabis plants with denser cannabis buds.

Proper airflow usually requires a few kinds of air movement. Grow room ventilation is easily done with a series of strategically-placed oscillating fans to ensure every plant gets sufficient contact. Indoor and outdoor cannabis grow rooms alike benefit from having ventilation near the ceiling that pulls out the older hotter air and gives cannabis plants better airflow with more food they can turn into more dense buds.

These high-powered exhaust fans are also a good opportunity for growers to decide how they want to filter air and control odour. However, these factors change dramatically depending on the size and purpose of your grow room.

Solid Nutrition Means Solid Buds

Nutrients are what your plants eat, they have to be what cannabis plants crave to get the most intensity in your density. Potassium, Phosphorus, and Nitrogen are three critical nutrients for added bud density in all cannabis plants.

Cannabis plants need the right nutrient regimen to give them the tools they need to grow big buds with plenty of trichomes and THC and regulate their pH.

Cannabis plants thrive and produce the most bud density when they have lots and lots of potassium, not as much but still plenty of Phosphorus, and Nitrogen, but less Nitrogen than Phosphorus and Potassium. The values of this ratio are called N-P-K values, and they’re always listed on nutrient labels.

Understanding this ratio of N-P-K is crucial to better bud density. Cannabis plants in the vegetative state require high Nitrogen and Potassium levels, with less but still good amounts of Phosphorus. Plants in the flowering stage respond better to lower Nitrogen, medium-high Phosphorus, and high potassium levels.

Phosphorus plays a considerable role in developing better bud density, but if this element isn’t balanced with the others in the N-P-K ratio, you can very quickly kill your plants.

Ready-made nutrient mixes often focus on denser buds and can help increase bud density once growers understand the basics of adding nutrients.

Cannabis plant flowering indoors showing how to grow dense bud

Pruned Cannabis Plants Offer Better Bud Density

Experienced growers can get a higher yield of dense buds when they effectively prune their cannabis plants.

Pruning helps cannabis growers target the parts of the plant most productive to bud growth, the nodes found throughout female cannabis plants and help them direct energy towards producing high THC cannabis with denser buds.

Pruning is the targeted cutting away of cannabis leaves to facilitate dense bud growth in the parts of the plant that need it. Leaves that get burnt or blighted may need to be removed, or growers may decide to defoliate their cannabis plants as they enter the flowering stage to allow for better light penetration.

The key to a well-pruned cannabis plant is to start low and go slow. In the flowering stage, check every cannabis plant’s lower branches and look for areas that don’t see the literal light of day. Prune slowly, and in stages so as not to shock the plant by going gradually and following up defoliating with a B complex fertilizer your plants have a better chance of being pruned than ruined.

It’s important if planning to prune that growers leave the large fan leaves intact so they can continue generating fuel for the cannabis plant. Smaller leaves can be removed, and the excess energy will be used to create denser buds.

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