As far as I know, Lara... kale and cabbage and other cruciferious veggies are cold/cool loving plants. Don't know if you can grow in warmer latitudes.

But there is a compromise. Melody here, whom you know, grows various sprouts in her home. These are very nutritious and I am just starting to do them myself. If you search "sprouts" you'll find her posts. Some are mixed into other forums... so you may need to do a more general search.

I bought a jar with screened lid at a store last weekend and some alfalfa seeds... to get started soon. Also over Xmas I got a 3 tier sprouter for $11.00. There are huge benefits from these and you can do broccoli sprouts (for the nutritional punch) and others for flavors you prefer.

It is fast and economical and doesn't require outside efforts.
There are several places online with seeds, but I don't know what you have over there where you are.

I am planning to put them in sandwiches to start, and slowly get hubby to accept them. He is not good with "new food"...