Tropical

What Can Grow in Zone 13b

Hottest USDA zone. Extreme tropical conditions. Only the most heat-adapted tropical plants thrive outdoors.

Zone 13b has average winter lows of 65°F to 70°F (18°C to 21°C). You can grow taro, dasheen, yardlong beans, and many more plants. The frost-free growing season lasts about 365 days.

65°FWinter Low
70°FWinter High
365 daysFrost-Free
NoneLast Frost
NoneFirst Frost
🥕 Vegetables
taro dasheen yardlong beans callaloo cassava breadfruit leaves tropical spinach moringa
🍎 Fruits
mangoes papayas bananas pineapples jackfruit durian rambutan langsat
🌿 Herbs
lemongrass culantro turmeric ginger galangal kaffir lime moringa
🌸 Flowers
tropical orchids heliconia torch ginger anthuriums bird of paradise
🌳 Trees & Shrubs
coconut palm breadfruit neem African tulip kapok
💡 Planting Tips

Irrigation and drainage infrastructure critical. Focus on drought-tolerant tropical crops. Shade structures extend the range of vegetables you can grow.

🌱
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📍 States in Zone 13b
Hawaii
🔀 Neighboring Zones
13a

Frequently Asked Questions

USDA Zone 13b has average annual minimum temperatures of 65°F to 70°F (18°C to 21°C). This temperature range determines which perennial plants can survive winter outdoors.

The average last frost date in Zone 13b is around None, and the first fall frost typically arrives around None. This gives a frost-free growing season of approximately 365 days.

Zone 13b is well-suited for taro, dasheen, yardlong beans, callaloo, cassava, breadfruit leaves. Irrigation and drainage infrastructure critical. Focus on drought-tolerant tropical crops. Shade structures extend the range of vegetables you can grow.

Fruits that thrive in Zone 13b include mangoes, papayas, bananas, pineapples, jackfruit, durian. Always check that specific cultivars are hardy to your zone before planting perennial fruit trees and shrubs.