as soon as my plants look to me like they need different conditions i move them. i learned this with orchids. i have one thats growing like a weed right now in a window that i wouldnt think would grow much of anything but you would swear i was pumping miricle grow to it instead of intentially abusing it to prove to ppl that orchids arent that difficult. btw its in spike now for the third time this year. it makes me shake my head when ever i walk by it.