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Quick Answer: ❌ No β€” Bitter melon needs sustained tropical heat that this zone cannot provide outdoors.
❌ No

Bitter Melon (Karela) won't survive Zone 1a winters outdoors

Bitter melon needs sustained tropical heat that this zone cannot provide outdoors.

🌱 What Does Grow in Zone 1a?

These alternatives thrive in your conditions.

πŸ—ΊοΈ USDA Plant Hardiness Zones

Zone 1 is shown in this colour on the map below
2023 USDA Plant Hardiness Zone Map β€” zones 1 to 13

2023 USDA Plant Hardiness Zone Map β€” 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 β†’

Technical climate details for Zone 1a
USDA Zone
1a
Last Frost
early July
First Frost
mid-July
Frost-Free Days
14
Bitter Melon (Karela) Zone Range
9a – 12b
Days to Harvest
55–70 days

Frequently Asked Questions

Bitter melon needs sustained tropical heat that this zone cannot provide outdoors.
Zone 1a is in USDA Hardiness Zone 1a with approximately 14 frost-free days per year.
Bitter Melon (Karela) grows in USDA Zones 9a–12b.
Bitter Melon (Karela) needs moderate care and attention to thrive.