Planting Guides
When to Plant Carrots in Miami: Zone 10b Dates + Best Varieties
Last updated: July 29, 2026
Plant carrots in Miami from November through February for the only viable window. Zone 10b's tropical humidity and limestone soil make winter the sole productive season for this cool-weather crop.
— Image © Plant Reference 2026
Quick Answer
Sow carrot seeds in raised beds November through February in Miami. This winter dry season is the only practical window for carrots in Zone 10b's tropical climate.
TL;DR
Miami's Zone 10b is essentially frost-free year-round, but carrots only perform well during the brief November through February dry season when temperatures and humidity drop enough for cool-season crops. The oolitic limestone bedrock makes in-ground planting impossible—raised beds are mandatory. Daucus carota subsp. sativus 'Nantes' produces the best flavor in Miami's narrow window, while Daucus carota subsp. sativus 'Chantenay' handles shallow raised beds and containers in the alkaline limestone environment.
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Frequently Asked Questions
Start sowing carrot seeds in raised beds in early November as temperatures moderate after the long tropical summer. Continue succession sowings every 2-3 weeks through mid-February. December and January are the best months—lowest humidity and coolest temperatures of the year. Miami's carrot window is roughly 3.5 months, the shortest of any city in this series. There is no spring or fall extension.
Daucus carota subsp. sativus 'Nantes' produces the sweetest roots during Miami's winter window. Choose the cultivar 'Bolero' specifically for its disease resistance—critical in Miami's persistent tropical humidity. For the most reliable production, Daucus carota subsp. sativus 'Danvers 126' resists soft rot better than other types. For shallow raised beds or containers, Daucus carota subsp. sativus 'Chantenay' at 4-5 inches is the most practical choice.
Miami's combination of extreme heat and high humidity from March through October makes carrot production impossible during those months. Soil temperatures exceed 85°F, producing bitter roots. Simultaneously, humidity promotes fungal diseases that destroy foliage and rot roots. Even with shade cloth and careful irrigation, conditions are too hostile for cool-season crops. The November-through-February dry season provides the only window where temperature and humidity both drop enough for production.
Yes—raised beds are mandatory. Miami sits on oolitic limestone bedrock that is impenetrable for root crops. There is no traditional soil to dig into. Every serious vegetable gardener in South Florida uses raised beds or containers with imported growing media. Build beds at least 12 inches deep with excellent drainage.
Choose disease-resistant varieties like Daucus carota subsp. sativus 'Nantes' cultivar 'Bolero.' Space plants generously for air circulation. Use drip irrigation to keep foliage dry. Apply copper-based fungicide preventatively every 10-14 days. Remove yellowing or spotted leaves immediately. Keep mulch thin (1-2 inches) and pull it back from carrot crowns. Even during the dry season, Miami's humidity promotes fungal growth.
Root-knot nematodes are endemic in South Florida and can colonize raised beds over time. Use fresh imported soil, rotate crops between winters, and solarize bed soil during summer by covering with clear plastic for 6-8 weeks. The intense summer heat sterilizes the top several inches. Avoid moving soil between beds, and inspect roots at harvest for galling.
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M
Maria is a tropical plant grower in Miami who maintains a half-acre property packed with palms, fruit trees, and tropical ornamentals. She grew up in Puerto Rico surrounded by tropical plants and moved to South Florida for college, earning a biology degree. Maria worked at a major tropical botanic garden for several years before transitioning to freelance writing and consulting. She specializes in tropical fruit growing, hurricane-resilient landscaping, and the particular challenges of gardening in South Florida—salt air, limestone soil, intense rain, and the threat of tropical storms. Maria's practical about the realities of tropical gardening: it's not paradise if you don't understand what you're dealing with.