Can You Grow Sunflower in Zone 1b?
Quick Answer:
❌ No — Sunflowers grow in virtually any zone with a few weeks of warm weather.
❌ No
Sunflower won't survive Zone 1b winters outdoors
Sunflowers grow in virtually any zone with a few weeks of warm weather.
🌱 What Does Grow in Zone 1b?
These alternatives thrive in your conditions.
🗺️ USDA Plant Hardiness Zones
Zone 1 is shown in
this colour
on the map below
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 1b
- USDA Zone
- 1b
- Last Frost
- mid-June
- First Frost
- early August
- Frost-Free Days
- 47
- Sunflower Zone Range
- 2a – 11b
- Days to Harvest
- 60–80 days
Frequently Asked Questions
Sunflowers grow in virtually any zone with a few weeks of warm weather.
Zone 1b is in USDA Hardiness Zone 1b with approximately 47 frost-free days per year.
Sunflower grows in USDA Zones 2a–11b.
Sunflower is beginner-friendly and one of the easier crops to grow.