4 nodes is a general rule of thumb, takes 2.5-4 weeks depending I believe.
razzapiggy Reviewed by razzapiggy on . how long in veg. before flowering ? Two questions in fact : 1. What is the minimum veg. time from seed before one can go to 12/12 ? 2. I'm planning to germinate seeds in a paper towel then place them in rockwool cubes and grow them aeroponically. Is it best to keep the cubes in a flat tray until roots begin to show through the rockwool or can I immediately put the cubes with sprouting seed into my aero system ? Rating: 5