Prune everblooming roses by about one-third in late August and apply fertilizer to the bed. We recommend Rose-tone or Fertilome Rose and Flower Food.
Continue a spray program to prevent blackspot and powdery mildew. We recommend Fertilome Systemic Fungicide, or Serenade for organic gardeners.
Dig and divide Louisiana irises, replanting as soon as possible. Don’t let them dry out.
Watch for chinch bug damage in lawns. Symptoms are irregular patches of dead grass surrounded by yellowing grass. Treat with Hi-Yield Bug Blaster or Cyonara Lawn and Garden Spray.
Keep annuals and perennials deadheaded to prolong blooming.
Apply Sluggo or Earth-Tone Bug and Slug Control for Organic Gardening if damage from snails and slugs occurs. Sluggo targets only slugs and snails. Earth-Tone Bug and Slug Control for Organic Gardening kills sowbugs, pillbugs, earwigs and cutworms, as well as slugs and snails.
Spray trees affected by scale insects with Hi-Yield Systemic Insect Spray.
Irrigate lawns, landscape and garden beds, including newly planted trees and shrubs, in the absence of rain.
Remove suckers that sprout at the base of trees, such as crape myrtles, vitex and yaupon holly. Don’t leave stubs.
Control powdery mildew on ornamentals with Fertilome Systemic Fungicide, or Serenade for organic gardeners.
Direct seed broccoli and cauliflower in mid August.
Set out broccoli, cauliflower and cabbage transplants in mid-August.
Start planting turnip, mustard and collard greens in mid-August.
Plant a fall crop of green beans in late August.
Continue to plant warm-season ornamentals – it’s a long time till frost! -- such as begonias, gerbera daisies, coleus, marigolds, periwinkles, pentas, ornamental sweet potatoes, lantana, torenias, ageratum, angelonias and caladiums. Before replanting, give your soil a boost with Vital Earth compost and Fertilome Bedding Plant Food.
Cut off yellowing foliage and flowers that form on caladium plants.
Pull out and compost healthy vegetable plants that have finished producing. Discard, don’t compost, diseased plants.