Blake09

I think that you are doing everything you should to make a healthy banana. The high heat could of slowed the banana down, but it should pick back up once it cools off a bit. Ants will farm aphids on the plant but you said that they have gone away so I dont think that you have an aphid problem (the trail of ants could of been that they have found food near by, or moving a colony).

Your plant looks healthy, once the cigar leaves get a tan in the sun they should darken up. You can give it some high nitrogen fert and that will make the leaves look better. An example: 12-5-5, 10-5-5, or 10-10-5. I fert my bananas with 10-10-10.

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A banana plant in the autumn gale -
I listen to the dripping of rain
Into a basin at night.
~ Basho Matsuo (1644- 1694)