Zone 13 Vegetables
The best vegetables to grow in Zone 13 — with variety tips, planting times, and care notes.
Quick answer · Updated July 2026
The best vegetables for Zone 13 are heat-loving tropical staples — sweet potatoes, taro, cassava, pigeon peas, okra, hot peppers, eggplant, yardlong beans, and perennial greens like Okinawa spinach — which grow essentially year-round. Temperate favorites such as tomatoes, lettuce, and broccoli also grow well here, but only in the cooler, drier window from roughly November through February.
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Growing vegetables in Zone 13
Zone 13's hot, nearly frost-free climate flips the vegetable calendar: fall, winter, and spring are the prime growing seasons, while brutal summer heat is the off-season for most crops. Focus on heat-tolerant varieties in summer and grow the widest range in the cooler months.
The vegetables below grow well in Zone 13. Use the zone's frost dates — last frost None, first frost None — to time sowing and transplanting right.
Vegetables are the backbone of most food gardens. Success comes down to matching crop requirements — days to maturity, heat or cold tolerance, spacing — to your zone's growing window. Short-season zones prioritise fast-maturing varieties; long-season zones can grow almost anything.
Zone 13 at a glance
- Last frost
- None
- First frost
- None
- Climate
- Tropical Hot — Hawaii (lowest elevations), Guam, American Samoa
- Soil notes
- Volcanic and coral-derived soils. Young lava flows are extremely infertile; older volcanic soils are deeply rich. Coral-derived soils on Pacific islands are alkaline and require acidification for many crops.
Growing vegetables without frost: how Zone 13 really works
Zone 13 — Hawaii’s lowlands, Puerto Rico, and the U.S. Virgin Islands — never sees frost, so the mainland playbook of “last frost to first frost” means nothing here. The year splits instead into a hot, humid wet season (roughly May–October) and a cooler, drier season (November–April). Tropical staples produce straight through both; temperate vegetables get one good season, and it’s the winter.
The number that matters most is 95°F: above it, tomato, bell pepper, and bean blossoms drop without setting fruit, and lettuce turns bitter and bolts. That’s why Zone 13 gardeners flip the mainland calendar — “summer crops” like tomatoes are planted in October and November, harvested by March, and the true summer belongs to crops that evolved for the tropics.
Two more local realities shape the garden: wet-season downpours leach nutrients fast (mulch heavily and feed little-and-often), and the dry season demands real irrigation — winter rain alone won’t carry a vegetable bed in leeward Hawaii or southern Puerto Rico.
Zone 13 vegetable planting table
| Vegetable | When to plant | Days to maturity | Heat tolerance |
|---|---|---|---|
| Sweet potatoes | Year-round (best May–Oct) | 100–140 | Excellent |
| Taro (kalo) | Wet season (May–Oct) | 200–300 | Excellent |
| Cassava (yuca) | Year-round | 240–360 | Excellent |
| Pigeon peas (gandules) | May–July | 150–180 | Excellent |
| Okra | Year-round | 50–65 | Excellent |
| Hot peppers | Year-round | 60–90 | Excellent |
| Yardlong beans | Year-round | 60–75 | Excellent |
| Okinawa spinach | Year-round (perennial) | ~60 to first cut | Excellent |
| Malabar spinach | Year-round | 55–70 | Excellent |
| Eggplant | Year-round (best Sep–Feb) | 65–85 | Very good |
| Cucumbers | Sep–Mar | 50–70 | Fair |
| Bush beans | Oct–Mar | 50–60 | Fair |
| Tomatoes | Oct–Feb | 60–85 | Poor above 90°F |
| Bell peppers | Oct–Feb | 60–90 | Fair |
| Lettuce & salad greens | Nov–Feb | 30–60 | Poor |
| Broccoli & cabbage | Nov–Jan | 60–90 | Poor |
Timing reflects lowland Zone 13 (Hawai‘i lowlands, coastal Puerto Rico, USVI). At elevation, temperate windows stretch longer.
Zone 13 vegetable-garden essentials
- ✓Flip the calendar: plant “summer” vegetables (tomatoes, peppers, beans) in October–November, not spring.
- ✓Use 30–40% shade cloth over temperate crops when days push past 90°F — it can add weeks to the harvest.
- ✓Mulch heavily in the wet season; tropical downpours strip bare soil of nutrients in a single storm.
- ✓Plan drip irrigation for the dry season — November–April rain alone won’t sustain a vegetable bed on leeward coasts.
- ✓Choose heat-set tomato varieties and tropical-adapted seed (University of Hawai‘i and Puerto Rico extension selections outperform mainland catalogs).
- ✓Grow perennial greens (Okinawa spinach, chaya, katuk) as your lettuce replacement from May through October.
Popular vegetables for Zone 13
Warm-season staple; requires 60–80 frost-free days.
Need warm soil (65°F+); extend season with transplants.
Prolific producer; pick small for best flavour.
Require consistent moisture; trellis to save space.
Cold-hardy; tastes better after frost.
Cool-season crop; bolt-prone in heat.
Direct sow after last frost; fix nitrogen.
Needs space and heat; plant in blocks for pollination.
Cool-season brassica; plant in spring and fall.
Direct sow in deep, loose soil; thin to 3 inches.
Tips for growing vegetables in Zone 13
- 1
Check days-to-maturity on seed packets against your zone's frost-free window.
- 2
Rotate vegetable families each year to break pest and disease cycles.
- 3
Succession-plant short-lived crops (lettuce, radishes, beans) every 2–3 weeks for continuous harvest.
- 4
Improve soil with 2–4 inches of compost worked in each spring.
- 5
Build soil fertility aggressively — compost, biochar, organic matter
- 6
Grow traditional Pacific staples: breadfruit, taro, coconut, banana
Vegetables in Zone 13: common questions
What vegetables grow best in Zone 13?＋
Tropical staples top the list: sweet potatoes, taro, cassava, pigeon peas, okra, hot peppers, eggplant, yardlong beans, and perennial greens like Okinawa and Malabar spinach. They handle Zone 13 heat and humidity year-round, while temperate vegetables are saved for the November–February cool season.
Can you grow tomatoes in Zone 13?＋
Yes — but in winter. Plant tomatoes from October through February, when temperatures drop below the ~95°F blossom-drop threshold and drier air eases disease pressure. Heat-set cherry varieties are the most forgiving choice.
When is the main vegetable-growing season in Zone 13?＋
For temperate vegetables, November through February — the tropical dry season. Tropical staples like sweet potatoes, okra, and peppers grow year-round, with the wet season (May–October) ideal for taro, pigeon peas, and cassava.