Summer’s brutal heat is here and heat waves present additional challenges for new planting in the garden. The planting window has closed for many of our summer favorites, but with a little extra attention we can plant these tough, heat loving crops: southern peas, sweet potato slips, okra, cantaloupe, pumpkins and warm season greens.  For Central Texas, warm season greens include amaranth, purple orach, sweet potato greens, and a variety of plants informally named spinach. These are Egyptian, Malabar, Okinawa  and New Zealand spinach. All of these will successfully grow in our part of Central Texas.Ornamental sweet potato vines are grown ...