Fimming is a horticultural technique that involves pruning the top of a cannabis plant in order to encourage the development of multiple new growth points and increase the plant’s yield. It is similar to super-cropping, which involves intentionally stressing the plant by bending and pinching the stems and branches, but is typically less stressful for the plant.

To perform fimming, the grower removes the main cola, or central stem, of the plant just above the top set of leaves. This causes the plant to produce several new growth points, which can result in the development of multiple smaller colas rather than a single large one.

Fimming is typically done during the vegetative stage of growth, when the plant is actively producing new shoots and leaves. It is believed to increase the plant’s yield by promoting the development of more flowers and buds, as well as improving the overall structure and shape of the plant.

Like super-cropping, fimming can be an effective way to improve the growth and yield of a cannabis plant, but it is important to be careful when pruning the plant and to avoid damaging the stem or branches. It is also important to provide adequate care, including watering, fertilizing, and protecting the plant from pests and diseases, to ensure the plant’s health and growth.


I have been a pot smoker for 44 years, and have some experience with growing. I love marijuana and feel blessed to live in a state where it is legal (Illinois). It is also legal to grow here as long as you have a medical card