Growing Borage in Zone 3B

Borage is a cheerful, easy annual with brilliant blue star-shaped flowers that are edible, beautiful, and irresistible to bees.

Zone 3B has a short growing season — start seeds indoors when possible and use season-extending techniques like cold frames and row covers.

Top Growing Tips

• Direct sow after last frost — doesn’t transplant well due to taproot
• Self-seeds aggressively; weed seedlings to control spread
• Freeze flowers in ice cubes for elegant cocktail garnishes
• Wilts in heat but recovers overnight — don’t overwater
• Plant near strawberries and tomatoes as a companion and bee attractor

Companion Planting

Good companions: tomatoes, strawberries, squash

Avoid planting near: No significant conflicts

Harvest Timeline

Harvest flowers anytime; pick regularly to extend bloom period

About Zone 3B

USDA Hardiness Zone 3B has an average last spring frost around May 15 and first fall frost around Sep 15. All planting dates above are calculated from these frost dates. Your specific location may vary — check with your local extension office for the most accurate dates.