Can You Plant Luffa Gourd Seeds In August Or September In Southern California?

Question

We do not have frost in this area and have warm temperatures usually through October.

Answer 1

That won't be enough time before you could get some below freezing temperatures, according to your USDA hardiness zone. They need a long growing season. Here is more:

https://www.gardeningknowhow.com/edible/vegetables/gourd/luffa-gourd-planting.htm