What to plant after harvest shallots and garlic
You can plant Late crops of squash, beans, and cucumbers through the end of July. Perpetual spinach, red Malabar spinach, Swiss chard, leafy amaranth (callaloo), 'Vitamin Green', 'Tokyo Bekana', and sweet potato leaves are good heat tolerant salad greens.
You can also begin to think of fall vegetables. Seed for fall crops of broccoli, kale, turnip, and cauliflower should be sown in containers by the 3rd to 4th week in July.
Here is our vegetable planting calendar for more information http://extension.umd.edu/sites/extension.umd.edu/files/_docs/programs/grow_it_eat_it/Publications/GE...