When should I plant Borage in Zone 9a?

Direct sow Borage outdoors around Mar 6. Harvest around Apr 30.

What is the last frost date for Zone 9a?

The average last spring frost date for Zone 9a is Mar 20. The first fall frost averages Nov 12, giving a 237-day growing season.

Yes. Borage needs 55 days to harvest. Zone 9a has a 237-day growing season, which is sufficient.

Zone 9a has warm winters and an extended growing season — excellent for heat-loving crops like Borage. Last frost: Mar 20. First frost: Nov 12.

Outdoor

Harvest

Mar 6Nov 12

Season: Mar 20 – Nov 12 (237 days)

Zone9a

Last FrostMar 20

First FrostNov 12

Season Length237 days

Days to Harvest55

SunFull Sun

Frost ToleranceLight

Spacing18/sqft

Direct sow Borage seeds outdoors around Mar 6. Soil temperature should be at least 50°F. Space at 18/sqft.

First harvest approximately Apr 30 (~55 days from planting). Continue harvesting until first frost (Nov 12).

✅ Strawberries✅ Tomatoes✅ Squash✅ Cucumbers

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 13b

Track Borage from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.