I planted three banana trees in my yard a few months ago. One is doing great. It has lots of great big leaves and towers over me. The other two have been disappointing. They both follow the same pattern:
1. Start as a pup, grow vigorously
2. Grow to about 1.5-2' tall
3. Leaves fold at midrib (like they do when it's very hot)
4. Leaves yellow and bend at midrib
5. Growth stops completely
Species: Dwarf Cavendish
Fert: 0.5lb 10-10-10 once a month
Water: ~2 gallons a day. Our soil is very sandy and it has been unusually dry this year.
Sun: The healthy palm gets full sun half of the day. The other two are in full sun all day.
I thought maybe they were getting too much sun, but people online say bananas love sun. Perhaps they are getting too hot?
Should I just give up on trying to grow banana trees in full Florida summer sun?
These pictures were taken this morning. Temp was about 80F, Humidity ~75%. Normally if the leaves fold, it is in the afternoon when the heat and sun are very oppressive, not in the morning.