Topping must be done when the plant has 3–4 nodes, but since autoflowers begin flowering by the third or fourth week, the plant should display 4 nodes by the beginning of week 3. Try not to cut too much since stress can severely reduce the yields. Do not Top or FIM if the plant has been overwatered or under-watered.

How many times should you top an Autoflower?

Can be performed once or multiple times to promote a very bushy canopy. A simple technique that can be performed using scissors or finger and thumb. Topping encourages two main shoots to grow in replacement of the one that was cut away.

Is it OK to top autos?

In simple terms, autoflowers can indeed be topped but it is not often recommended. Many autoflower growers have never topped a plant and would be cautious about ever doing so.