Residential Lawn & Garden

Gardening Almanac


What to Plant in August


Annuals: Coleus, Impatiens, Kalanchoe, Periwinkle/Vinca.


Beans (Pole), Broccoli, Celery, Collards, Corn, Cucumbers, Eggplant, Onions (Green), Pepper, Pumpkin, Southern Peas, Summer Squash, Tomatoes, Turnips, Watermelon.

Herbs and Spices

(From plants, not seeds) Basil, Bay Laurel, Ginger, Horehound, Lemon Balm, Marjoram, Mexican Tarragon Mint, Oregano, Rosemary, Thyme.


African Lily, amaryllis, Aztec Lily, Blackberry Lily, Canna, Crinum, Crocosmia, Elephant Ears, Gingers, Gladiolus, Kaffir Lily, Louisiana Iris, Moraea, Rain Lilies, Gladiolus, Iris, Moraea, Society Garlic, Spider Lily, Walking Iris.

What to Do in August

For more details on the following, call your local Extension office or visit the University of Florida’s publication website: 

Plant and fertilize annuals. (See January)

Fertilize palms. (See February)

Watch for lacebug infestations. (See March)

Spray roses for black spot disease. (See March)

Fertilize muscadine grapes after harvest. (See March)

Check lawns for insect pests. (See April)

Fertilize outdoor potted plants. (See April)

Plant palms. (See June)

Solarize garden soil. (See July)

Add organic matter to garden soil. Grass clippings, leaves, manure or compost are all suitable as soil amendments. Till it in, wait two weeks and have soil pH tested. County Cooperative Extension offices offer soil-testing services.

Plant vegetable seeds directly in the garden or seed bed. Sow watermelon seeds by the 10th, but delay planting others until mid-month (See above list). Sow seed no deeper than twice its diameter.

Remove old flower and seed heads from annuals, perennials and crape myrtle. Prune off old flowers to encourage blooming.

Groom roses to enhance fall bloom. Remove dead and dying twigs and reduce length of excessively long canes. This is a neatening, not a major pruning.

Lightly prune poinsettias for the last time. Flower buds initiate in October. Pruning after September 10 results in small bracts (flowers) or none at all.

Apply magnesium sulfate (Epsom salts) to palms. Correct yellowing of older fronds with one to five pounds of magnesium sulfate depending on the size of the palm.


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