Fort Lauderdale, FL

Fort Lauderdale's frost-free climate defines both the advantage and the challenge of gardening here. The last spring frost averages January 24, and the first fall frost around January 20; these dates effectively frame a 365-day growing season. This allows tropical and subtropical crops, mangoes, avocados, bananas, papayas, citrus, to thrive without the dormancy constraints that complicate growing them further north. But continuous growth means continuous pest and disease pressure. High humidity drives fungal issues; salt spray from the nearby Atlantic damages sensitive foliage on exposed sites. Summer heat regularly exceeds 90°F from May through September, stressing many plants during the wettest months. Hurricane season (June through November) brings wind damage and flooding risk. Most soil is sandy or poorly drained, requiring amendment and deliberate irrigation planning to avoid waterlogging or salt accumulation. Water availability fluctuates with seasonal drought cycles and local use restrictions. The practical advantage is that windows for planting warm-season crops never fully close, succession planting throughout the year is feasible, unlike in frost-prone regions where seasonal timing is rigid.

Fort Lauderdale gardeners face three recurring obstacles. High humidity and warm temperatures year-round create ideal conditions for fungal diseases, powdery mildew, leaf spot, and damping-off, particularly during the wet summer months (June through September). Scale insects, spider mites, and whiteflies thrive in warm, humid conditions and can devastate citrus, avocados, and mangoes if undetected. Salt spray from Atlantic exposure kills or stunts foliage on exposed plants; avocados and sensitive ornamentals suffer visible damage within a mile of the coast. Drainage is another persistent problem. Much of the area sits on sandy soil with a high water table; heavy summer rains (average 60+ inches annually) lead to temporary flooding and waterlogging that kills root-heavy plants like certain avocado varieties. Finally, hurricane season (June through November) poses wind damage risk and the secondary hazard of standing water and soil compaction from cleanup and emergency access.

Succession plant warm-season crops (peppers, eggplant, beans) throughout the year, but delay major sowings until early September to avoid the peak humidity and rain of June through August. Young transplants are most vulnerable to damping-off and fungal disease during this period. Citrus, mangoes, and avocados plant best in spring (March through May) when conditions are drier. Choose disease-resistant varieties where available. For citrus, request rootstocks bred for Huanglongbing tolerance. For mangoes, favor Kent or Tommy Atkins over more susceptible types. Ensure air circulation by spacing plants generously and pruning lower branches; dense canopies retain moisture and harbor mildew in humid climates. Mulch 3 to 4 inches deep but hold it 6 inches from trunk bases to prevent collar rot. Install drip irrigation rather than overhead spray to reduce fungal inoculum and conserve water during drought. Both practices are essential in Fort Lauderdale's wet summers.