Athosanswered grow question 5 years ago Autoflowers can be TOPed, but the window of opportunity to do so is fairly narrow, it must be done above the 4th node, removing the 5th pair pf leaves, before they fully open, else the plant will go into flowering and it will be too late. If you have a big enough pot, more than 4 gallon (15 liters) you might not need any nute. Just get a simple bloom nute. If you want a big nute, use a big pot.