Question

Evening rain.

The banana leaf

Speaks of it first
is this a haiku if so how

Answer 1

Yes this is a haiku, A haiku consists of three lines, with the first and last lines having five "moras," (a mora is a sound which comes after a short pause in a syllable) and the middle line having seven which is referred to as the 5-7-5 structure.

Answer 2

Evening rain.

The banana leaf

Speaks of it first

is this a haiku if so how

hope it is helpful to you