Growing Borage in Zone 10
When to plant and harvest borage in Zone 10— based on your zone's frost dates.
Zone 10 sits comfortably within borage's best range (Zones 2–11), so it grows well here on a standard schedule.
Borage planting calendar for Zone 10
These months are derived from Zone 10's frost dates — last frost around Rare or none, first frost around Rare — December to January in coldest years.
Start indoors
January
Sow outdoors
February
Transplant
February
Harvest
March
Free planting calendar
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A month-by-month Zone 10 chart with borage already on it — add the rest of your garden, then print it or save it as a PDF.
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Borage care at a glance
- Sunlight
- Full sun (6+ hours); tolerates light shade
- Water
- Low — drought-tolerant once established; about 1 inch per week while establishing
- Spacing
- 12–18 in apart
- Days to maturity
- 50–60 days to first bloom
- Best zones
- 2–11 (annual; self-sows to return year after year once established)
Growing borage in Zone 10: FAQs
Can you grow borage in Zone 10?＋
Zone 10 sits comfortably within borage's best range (Zones 2–11), so it grows well here on a standard schedule.
When should I plant borage in Zone 10?＋
In Zone 10, start seeds indoors around January. Zone 10's last spring frost is typically Rare or none and its first fall frost around Rare — December to January in coldest years, which sets the planting window.
When to harvest borage in Zone 10?＋
Expect to harvest borage in Zone 10 around March, depending on the season and variety.
Full Borage guide →
Complete care, problems, companions, and harvest tips.
Zone 10 overview →
Frost dates, climate, and everything to grow here.
October in Zone 10 →
What to sow, transplant, and harvest this month.