Athosanswered grow question 6 years ago Yes, it's too early. When you start depends mainly if you plan to transplant or not. If you are going to leave ir in the 1 gallon pot, start after the 4th week, if you transplant to 2 gallon, feed after the 6th week and if you transplant to a 3 gallon pot, then start after the 8th week. This are guidelines, you mileage may vary. I start after spoting the first signs of deficiency, that way i'm sure it's the right moment.