However I suggest you don't because the less competition there is, the better, in my view.
Anyway, here is my haiku.
Sometimes my prose wilts:
nothing I do revives it.
Time to press delete.
The modern haiku has seventeen syllables, usually 5, 7, 5 - just for those who are as forgetful as me. Not that you need to know, of course, if you're not going to enter.
The closing date is 31st August. So there's absolutely no time left, anyway.
And the haiku has to contain the word 'prose' in it somewhere, which is incredibly difficult, really. So I shouldn't bother. Honestly.