Does anyone have a source for good-producing heirloom/organic luffa seeds? I'm in Zone 9 (west coast of Florida) and want to utilize the very long cement block wall at the back of my property, that separates the back yards of my neighborhood from the street behind us.

I am planning on growing heirloom organic tomatoes and peppers for the fall markets, and luffa sounds like an excellent thing to add to help me stand out. Also, they seem pretty "fire and forget" once established, aside from watering.

Thanks!