Now is the time to plant fall color annuals in your landscape. The first step is site selection. Is the bed in full sun, partial shade, or full shade? What type soil does the bed contain? Is it sandy, clay, organically rich, or poor? Check the drainage by digging a hole 10 inches deep and fill it with water. Next day, refill the hole with water and see how long the water remains. It should not exceed eight hours. If it does, plan to use raised beds. Last but not least, have the soil tested and amend its pH as recommended (soil testing information is available through your county Extension office).
If the soil is mostly clay or sand, add four to six inches of compost, fine bark mulch, or other organic matter. Spade or till the organic matter in to about 12-18 inches deep. Then add slow-release fertilizer and rake the surface smooth.
Seeds or transplants can be purchased at local nurseries and home improvement centers. If you buy transplants, dig a hole large enough for the plant. Remove the plant from the container by supporting its root ball. Set the plant in the hole and backfill it so the plant is at the same level it was in its container. Water immediately.
Following are some annuals that can be planted now for fall color. All are suitable for East Texas soil and climate. The sweet pea prefers full sun; all others will thrive with sun to part-shade.
Bob Shearer, Smith County Master Gardener
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