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Quick Answer: ❌ No — Borage is nearly zone-universal — if you cannot grow it outdoors, start it in a container.
❌ No

Borage won't survive Zone 13b winters outdoors

Borage is nearly zone-universal — if you cannot grow it outdoors, start it in a container.

🗺️ USDA Plant Hardiness Zones

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

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 13b
USDA Zone
13b
Last Frost
no frost
First Frost
no frost
Frost-Free Days
365
Borage Zone Range
2a – 11b
Days to Harvest
50–60 days

Frequently Asked Questions

Borage is nearly zone-universal — if you cannot grow it outdoors, start it in a container.
Zone 13b is in USDA Hardiness Zone 13b with approximately 365 frost-free days per year.
Borage grows in USDA Zones 2a–11b.
Borage is beginner-friendly and one of the easier crops to grow.