September Garden Checklist
For instant color plant marigolds and garden chrysanthemums.
Bulbs to plant now include amaryllis, Aztec lily, calla, elephant ears, grape hyacinth, iris, leopard lily, narcissus, snowflake, watsonia, and zephyr lily.
Plant anise, basil, bay laurel, borage, chervil, ginger, horehound, marjoram, Mexican tarragon, and thyme.
Fertilize with a 15-0-15 or 16-4-8 fertilizer. Most Florida soils are high in phosphorous, the middle number on the fertilizer label, so this nutrient is rarely needed. Increase mowing heights to promote a deeper root system. Watch for brown patch fungus disease, which attacks lawns when the weather is cool and wet. It is most commonly found in St. Augustine, centipede and Bermuda lawns. The grass dies in roughly circular areas that may be 5 to 6 feet in diameter. In St. Augustine grass, the leaf blades rot where they attach to the runner. Apply an approved lawn fungicide according to label directions.
Lots of pruning is in order this month. When pruning, make cuts back to the branch angle, or to the ground. If you want the plant to fill in from the base, make the cut about 1 foot above where you want the new branches to begin.
Fertilize palms. Fertilize shrubs and young trees for maximum growth and cold hardiness.For fall color plant deciduous trees such as bald cypress, Chickasaw plum, crape myrtle, redbud, red maple, river birch, sugarberry, sweet gum and winged elm. Fruiting trees to plant include black olive, dogwood, golden raintree, hollies, southern juniper, sugarberry, and wax myrtle. For fall flower color try golden raintree, loquat, orchid trees, and sweet acacia.
Snap beans, pole beans, beets, broccoli, cabbage, carrots, cauliflower, endive/escarole, lettuce, cucumber, bulbing onions, bunching onions, radishes, summer squash, and turnips. Tender vegetables must be planted in very early September.