Plant annuals, perennials and grasses. Favorite warm-weather annuals to plant include celosia, ageratum, begonia, blue daze, geranium, dusty miller, coleus, impatiens, marigold, Mexican heather, penta, periwinkle, zinnia, torenia and portulaca. Many perennials can be planted as well — good ones to try are black-eyed Susan (Rudbeckia spp), butterfly weed (Asclepias tuberosa), copper canyon daisy (Tagetes lemmonii), coreopsis (Coreopsis spp), cuphea (Cuphea spp), four-nerve daisy (Tetraneuris scaposa), Shasta daisy, coneflowers (Echinacea spp), lantana (Lantana spp), salvia (Salvia spp), sedum (Sedum spp) and plumbago (Plumbago auriculata). Great ornamental grasses to look for are maiden grass (Miscanthus sinensis), inland sea oats (Chasmanthium latifolium), Mexican feathergrass (Nasella tenuissima), purple fountain grass (Pennisetum setaceum), bamboo muhly (Muhlenbergia dumosa), switchgrass (Panicum virgatum), Gulf coast muhly (Muhlenbergia capillaris) and big muhly (Muhlenbergia lindheimeri).Note: Grasses self-seed, so check before planting if they can be invasive in your area.