I'm a little new to the SW also and have been really excited about my garden - -I'm not doing containers, but I'm sure
peppers in pots would do very well and are also attractive! Good Luck!
Two years ago I planted in January - - the first warm weekend - - and really had GOOD luck!... Sunflowers, okra (a little leggy and tall, but edible pods did appear), swiss chard that is just now seeding (2 - 3 years growth!), leaf lettuce - - a little thin for my liking, but edible - - endive (they produce pretty blue
flowers before seeding), funky spinach (thick triangular shaped leaves). My daughter assisted since she's been here longer than I and gardened in this heat.