high heat and banana varieties
 

In southern California we had 7 days in a row of triple digit temperatures.

The following varieties are in the ground

Dwarf Orinoco no sign of stress
Namwah no sign of stress
Misi luki no sign of stress
Rajapuri. The same

In pots

Gran nain some burned leaves
Dwarf red some burned leaves
Fhia 1 and 3 no sign of damage
Dwarf Cavendish looked ok but has not liked my summer
Dwarf Brazilian. Looked OK
Williams. Some leaf burn
Unknown Cavendish type looked OK
Psiang klotek from crazy banana a little leaf burn

Re: high heat and banana varieties
 

Interesting observation: looks like the most heat tolerant varieties are also the most cold tolerant ones.

Re: high heat and banana varieties
 

I'm in Arizona, and have had mixed results with some of those in summer. I had an in ground raja and goldfinger burn to a crisp last summer, while namwah did OK.

The namwah is still going strong this year, and well as a red (planted mid summer - a bad idea in the desert) , and a basjoo (that has now been split several times). I also have a manzano in a pot, in full sun that went from a tiny corn to about 6 ft over the summer (going in ground in spring).

For me the key has been planting depth. For me, a planting at a depth of a foot or more means they survive the summer, with little burn, anything less and they don't retain moisture at 110 plus. In my non scientific tests, at that temperature, soil moisture is almost non present in the top 6 inches or so of soil (even with them on the drip morning and night, the first few inches actually feel hot to the touch as well - probably to the detriment of the root system). I buried soaker hose with them at that foot depth, and that becomes my primary watering source in the summer.

Re: high heat and banana varieties
 

I just noticed that the gran nain in the 25 gallon pot seemed just fine but did have some tree shade in the late afternoon. The other one was in a 15 gallon pot.