markhillis

Ok, so I've got a couple of banana plants that started out great. My drains ok but not super fast, so when trouble started I thought I was overwatering, even though it is summer in Phoenix and I had read that it's almost impossible to overwater when the temps are 105 and above. So I backed off and started watering less....that seemed to help a little. Before that the cigar-roll leaves would emerge with black spots in sections. After I cut back on water the leaves come out huge and beautiful but as soon as they completely unfurl (or almost unfurl) they start getting these brown dead areas...in one day. I have posted several photos of the biggest plant and one photo of the smaller one, which isn't as bad. They get regular fertilizer, compost, leaf clippings, etc.
I don't think they're burning... It was only 100 today when this big leaf opened light green and then developed these bad areas within a few hours. Other leaves have not suffered due to the heat other than wilting everyday.