Growing Borage in Zone 12b
Zone 12b has a year-round growing season. Borage can be planted almost any time with proper planning. Last frost: Jan 1. First frost: Dec 31.
Planting Calendar
Season: Jan 1 – Dec 31 (364 days)
When to Plant Borage in Zone 12b
Start Seeds Indoors: Dec 4
Start Borage seeds indoors around Dec 4 (4 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 5–14 days.
Transplant Outdoors: Jan 1
Transplant Borage seedlings outdoors after Jan 1. Wait until soil temperature reaches 50°F. Space plants at 18/sqft. Harden off plants for a week before moving outside.
Harvest: Feb 25
First harvest approximately Feb 25 (~55 days from planting). Continue harvesting until first frost (Dec 31).
Companion Planting
Borage in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bFrequently Asked Questions
When should I plant Borage in Zone 12b?
Start Borage seeds indoors around Dec 4. Transplant outdoors after Jan 1. Expect first harvest around Feb 25.
What is the last frost date for Zone 12b?
The average last spring frost date for Zone 12b is Jan 1. The first fall frost averages Dec 31, giving a 364-day growing season.
Can I grow Borage in Zone 12b?
Yes. Borage needs 55 days to harvest. Zone 12b has a 364-day growing season, which is sufficient.
What is the best month to plant Borage in Zone 12b?
The best time to start Borage in Zone 12b is Dec. Begin seeds indoors around Dec 4, then transplant outdoors after the last frost date of Jan 1.
What companion plants grow well with Borage?
Good companion plants for Borage include Strawberries, Tomatoes, Squash, Cucumbers.
How long does Borage take to harvest?
Borage takes approximately 55 days from planting to harvest. In Zone 12b, expect your first harvest around Feb 25.
Plan Your Borage Garden
Track Borage from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
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