Growing Borage in Zone 8b
Zone 8b has warm winters and an extended growing season — excellent for heat-loving crops like Borage. Last frost: Mar 22. First frost: Nov 10.
Planting Calendar
Season: Mar 22 – Nov 10 (233 days)
When to Plant Borage in Zone 8b
Start Seeds Indoors: Feb 22
Start Borage seeds indoors around Feb 22 (4 weeks before last frost). Optimal germination temperature: 70°F. Germinates in 5–14 days.
Transplant Outdoors: Mar 22
Transplant Borage seedlings outdoors after Mar 22. Wait until soil temperature reaches 50°F. Space plants at 18/sqft. Harden off plants for a week before moving outside.
Harvest: May 16
First harvest approximately May 16 (~55 days from planting). Continue harvesting until first frost (Nov 10).
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 8b?
Start Borage seeds indoors around Feb 22. Transplant outdoors after Mar 22. Expect first harvest around May 16.
What is the last frost date for Zone 8b?
The average last spring frost date for Zone 8b is Mar 22. The first fall frost averages Nov 10, giving a 233-day growing season.
Can I grow Borage in Zone 8b?
Yes. Borage needs 55 days to harvest. Zone 8b has a 233-day growing season, which is sufficient.
What is the best month to plant Borage in Zone 8b?
The best time to start Borage in Zone 8b is Feb. Begin seeds indoors around Feb 22, then transplant outdoors after the last frost date of Mar 22.
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 8b, expect your first harvest around May 16.
Plan Your Borage Garden
Track Borage from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Borage Growing Guide