USDA Hardiness Zone 11B is frost-free. On the 2023 USDA map it covers the Florida Keys from Islamorada to Key West, including Marathon, plus small parts of Hawaii and Puerto Rico, with average annual minimum temperatures between 45°F and 50°F. The growing season spans 364 days — frost is absent in all but the most exceptional years. Zone 11B gardeners can grow tropical and subtropical crops year-round, but the absence of a cold season means some temperate vegetables (garlic, onions, many brassicas) lack the vernalization period they require. Choosing tropically adapted varieties and managing intense heat and rainfall are the primary challenges. For a personalized forecast based on your specific zip code, use our free planting calendar. Browse individual plant guides for detailed growing instructions, or explore how USDA zones work to better understand your growing conditions.
🌱 Zone 11B Planting Guide
Last Spring Frost
Jan 1
First Fall Frost
Dec 31
Growing Season
364 days
Planting dates for 100 vegetables, herbs, and flowers — computed from Zone 11B frost dates.
Browse all 100 Zone 11B plant guides →
Jump directly to the detailed growing guide for any plant in Zone 11B.
🥬 Vegetables
🌿 Herbs
🌸 Flowers
📖 Growing guides for Zone 11B
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🖨️ Printable calendars & worksheets
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Month-by-month planting dates for 100 crops across every zone in the Florida region. Printable PDF.
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Map beds, track planting dates, and plan rotations with zone-specific frost windows pre-filled for the Florida region.
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