Why post this in every section of this forum?
To give a quick answer to your question....if you already have it, use it. If you are going to go out to buy one just to grow try using that coin for proper equip. as the aerogarden is made to grow herbs, herbs that do not need a high power light to develop tight buds. Think about it, how many herbs do you grow that actually go to flower....not too many. Most are leafy herbs such as basil and what not. Bottom line, it will work but if you are serious about this hobby it won't keep you satisfied (or with a constant supply of bud) for long.
Just my 2 cents....