I would let my plants tell me what they need. But if your looking for some kind of recipe, I would say feed once every third watering at 1/8th strength- its about the ratio of your macro and micro nutrients, not just the amount of N. You see, there are so many parameters to be wrangled into place in order to grow this plant well, so it's kind of hard for someone to confidently say, "yes," or, "no" to a specific, yet, vague question such as the one you posed. If you want someone to hold your hand, you have to tell us where it is located and whats on it first (typing for myself only) , or we will never be able to help you across the busy street. There is a, seemingly, insurmountably hill of knowledge to acquire, in order for you to do well in your objective ( grow a weed well). the only way to ascend this acclivity is to actively peruse the summit yourself- but, dont fret, this community will help you should you veer of path- even, occasionally, offer elucidation. Help us help you! do some basic research and ask informed questions- the hill I spoke of earlier is here on this website - explore with intention and direction. REAL ADVICE: check out the stickies in the newbie section and get back to us