Can You Grow Tomatillo in Zone 9b?
Tomatillo grows well in Zone 9b
Tomatillos grow vigorously in your zone — plant two and expect a massive harvest.
📅 When to Plant in Zone 9b
Based on Zone 9b's average last frost of mid-January and first frost of late December — frost can arrive earlier or later in any given year, so check your local forecast before you transplant.
🌱 Growing Tomatillo in Zone 9b
Must grow at least two plants for fruit set — single plants rarely produce. Start indoors 6-8 weeks before last frost. Support with stakes or cages. Harvest when husks split and fruit fills the husk. Prolific producer — expect more than you need.
🗺️ USDA Plant Hardiness Zones
2023 USDA Plant Hardiness Zone Map — public domain. USDA Agricultural Research Service
USDA zones run 1a–13b (26 half-zones). Each full zone above covers both the a and b half-zones. Browse all US zones →
Technical climate details for Zone 9b
- USDA Zone
- 9b
- Last Frost
- mid-January
- First Frost
- late December
- Frost-Free Days
- 348
- Tomatillo Zone Range
- 5a – 10b
- Days to Harvest
- 75–100 days