What to Plant
Annuals/Bedding plants: Even though temperatures are still warm, begin planting for the cooler months ahead. Impatiens, alyssum, and dianthus are good plants for the fall/winter garden.
Bulbs: Plant agapanthus, rain lily, and Clivia lily now for blooms next spring or summer. Add organic matter to the planting bed for the best results.
Herbs: A wide range of herbs can be planted from seed or transplants this month. Some to try include dill, fennel, parsley, and cilantro. 
Vegetables: Easy crops that can be grown now include beans, broccoli, carrots, collards, lettuce, green onions, peppers, radishes, spinach, and tomatoes.
What to Do
Lawns: Control winter weeds in lawns before they appear. Pre-emergence herbicides must be applied at the right time to be effective. Apply when nighttime temperatures are 55°F–60°F for 4–5 days.
Ornamental trees and shrubs:
Fertilize plants that are not performing as desired. This is the last month of the year to fertilize shrubs and trees. Controlled-release fertilizer provides nutrients over a longer period of time.
Lawn fertilization: Fertilize lawns if needed.
Strawberries: Prepare beds and set strawberry plants this month. Strawberries also make colorful and tasty container planting. Either way, water daily until plants are established.
Palms: Palms have unique nutritional needs. Select a fertilizer that contains controlled-release nitrogen, potassium, and magnesium.
Oleanders: Control the oleander caterpillar, which is a year- round resident in South Florida, without harming beneficial insects by pruning off infested leaves or spraying with BT (Bacillusthuringiensis).
Twig girdlers: Control twig girdlers by cleaning up and destroying fallen branches that young twig girdlers can use for harborage.
Source: University of Florida IFAS Extension