This plant was under a 1000W light and has huge, thick, arm-sized buds that go basically to the bottom of the plant. These buds are so thick at the bottom where they end that it’s good evidence this plant would have produced quite a bit more bud if it had been allowed to get taller in the vegetative stage. Those colas would have been longer, and there would have been many chunky buds underneath. This plant should probably have been about twice the height (twice the size of the longest cola) to have really produced what it was capable of under this grow light. But the grower still had a whole lot of bud to console himself with
Another example of plants that were a great height at harvest!
Note: Defoliation (removing leaves to expose bud sites) lets you produce bigger buds further down into the plant! That means your light could potentially support slightly taller plants with longer buds if you use defoliation. This is why it’s important to always test your plants with your light and your setup, as everyone’s results will be a little different based on their strain, environment and personal growing techniques.
In addition to the height, the overall size/mass of the plant has a big effect on final yields. A bigger plant can simply support more and bigger colas. Because of that, it’s good to build up overall plant size as opposed to just height to maximize yields. You want plants that are wide and flat like a table, not tall and skinny!
What to Remember About Plant Height
15″ tall, and a 630W is good for
Although plants typically double in height after the switch, some particularly tall and short strains can stretch more or less than average! Always pay attention to what the breeder tells you about your strain and plan accordingly!
In the picture below, the grower could probably have switched to 12/12 earlier without hurting yields because the buds at the bottom are not adding much weight. Sativa plants like this can triple in height after the switch to the flowering stage, so it’s common to end up with a Sativa plant that’s far taller than expected!
So What’s the Best Plant Height?
Height restrictions are much different for outdoor plants that mature under the powerful light of the sun. Outdoors, plants can keep getting taller and taller as long as they get enough direct sunlight a day and have enough root space.
Here’s another example of a plant that was a good height at the end. You can see there isn’t a whole lot of extra growth at the bottom with small buds. However, you can see the buds end where the thick layer of leaves begins. This grower could have used some light defoliation to expose more bud sites lower down, and produced buds further down into the plant. In that case, their grow light could possibly have supported a plant that was even taller!
The quality of your plant depends on your knowledge of the cannabis growth stages and the lifecycle of your plants.
3. Vegetative Growth
Female: Two pistils (the pistil contains the reproductive parts of a flower) will be growing on the buds (flowers grow above these leaves, one cluster on each side).
Male: Small green sacs full of pollen will be seen on the node areas.
In terms of plant height, taller does not necessarily mean better, and shorter doesn’t mean worse. Some indica plants may grow short but yield higher than taller sativa plants. Ultimately, plant height depends on your grow space, equipment, marijuana plant genetics, and cultivation practices.
Tip #2: Grow Sativa Strains
Indoor growers can also grow tall plants with the right grow lights, light intensity, and low-stress training. They can also prune lower-yielding bottom buds that don’t get enough light to allow the plant to focus its growth on its higher flowering buds..
Tip #5: Control Pests on Your Cannabis Plants
Some commercial growers use extra-large containers exceeding 200-gallons in size. Growing in fabric pots allows you to move your plants outdoors to get the best light, shade, or protection from environmental threats. Just make sure to keep them out of public view.