For summer vegetables, I am planning to grow several things that have worked well for me in the past. Cranberry hibiscus is a great leaf vegetable when you need a couple leaves for a sandwich or tacos (anything where a little tartness won't be out of place). Sweet potatoes are another good one. They are one of the only tropical root crops that has a short enough cycle to actually harvest in the middle of summer. Leaves and vine tips are great in stir fry or as a cooked green. Cooking bananas and plantains come in summer, too. Bell peppers grow well in the SHADE durring summer. I am experimenting with a nematode resistant variety called Carolina Wonder from Southern Exposure Seed Exchange. I am also looking to grow day neutral pigeon peas, day neutral winged beans, and chayote. I'm not sure if the peas and beans will set pods over the summer when the temps are high. As I recall, my eggplant continued to fruit over the summer, but I had them in about 50% shade. Chayote won't fruit until fall, but the vine tips are good (1# green vegetable in Papua New Guinea) and will grow all summer.