How to Grow Borage
Wikimedia Commons
Borage
Borago officinalis
herbBorage is a bushy annual herb with hairy leaves and distinctive star-shaped blue, pink, or white flowers. It grows vigorously and self-seeds readily, making it an easy addition to herb gardens. The plant is valued for its edible flowers and leaves, which have a cucumber-like flavor.
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Example Borage timeline · Pittsburgh, PA (Zone 6b)
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Plant Borage
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Borage
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Borage dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-10; grows as cool-season annual in warmer regions
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Seedling
1-2 weeksTiny hairy cotyledons emerge; first true leaves are wrinkled and fuzzy.
Thin seedlings to 12 inches apart; borage resents transplanting, so direct sow when possible. Keep soil consistently moist.
Vegetative Growth
3-4 weeksPlant develops sturdy, branching stems covered in fine hairs; large, crinkled leaves appear.
Minimal fertilizing needed—too much nitrogen promotes leaf growth over flowers. Pinch tops if bushier form is desired. Provide support stakes if growing tall.
Flowering
6-10 weeksStar-shaped flowers in blue, pink, or white appear on drooping stems; flowers attract pollinators.
Deadhead spent flowers to encourage continuous blooming. Flowers are edible and at peak flavor when fully open. Harvest flowers in morning after dew dries.
Seed Development
4-6 weeksFlowers fade and develop ornamental oval seed pods. If left on plant, seeds mature and drop for self-seeding next season.
Allow some flowers to go to seed if you want volunteer plants next year. Harvest seed pods before they fully dry if you want to save seeds.
End of Season
Varies by climatePlant begins to decline as temperatures drop (in cool climates) or summer heat intensifies (in warm regions).
Pull spent plants and add to compost. Leave a few seed pods on soil surface to self-seed for next year.
Companion Planting
Plan your garden →Plant with:
Common Pests
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Spray with strong water stream; use insecticidal soap or neem oil. Encourage beneficial insects like ladybugs.
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Increase humidity; spray foliage with water. Use neem oil if severe. Avoid powdery conditions that favor mites.
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Remove by hand in early morning; create barriers with diatomaceous earth or copper tape. Beer traps can be effective.
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Ensure good air circulation; avoid wetting foliage. Apply sulfur or potassium bicarbonate fungicides if needed. Remove affected leaves.
Uses
Edible flowers and fresh leaves
CulinaryBorage flowers are a beautiful garnish for salads, cocktails, and desserts and are often candied. Young leaves have a crisp, cucumber-like flavor and can be used fresh in salads, cool beverages, or as a cooked green similar to spinach. [source]
Oil and immune support
MedicinalBorage seed oil is rich in gamma-linolenic acid (GLA) and is used to support joint health and skin conditions. Traditionally, borage tea was used to boost mood and support the adrenal system during stress. [source]
Herbal tea
HouseholdFresh or dried flowers and leaves make a delicate, refreshing herbal tea with a mild, slightly sweet flavor. The tea is often enjoyed chilled as a summer beverage. [source]
Pollinator attraction
WildlifeBorage is an excellent bee plant that attracts honeybees, bumblebees, and other pollinators throughout the growing season. Its abundant nectar production makes it valuable for supporting pollinator populations. [source]
Candied flowers and dried arrangements
CraftBorage flowers can be candied with egg white and sugar for elegant cake decorations, or dried for use in herbal crafts and arrangements. The delicate blooms retain their color well when properly dried. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest young leaves anytime for culinary use—they are most tender before flowering. Flowers are best harvested in the morning when fully open and before peak heat. Cut individual flowers or entire flower heads with scissors. Both leaves and flowers can be used fresh or dried. Continuous harvesting encourages more blooms.
Fun Facts
- 🌱 Borage has been cultivated for centuries and was brought to North America by European colonists; the name may derive from the Arabic word 'abu araq' meaning 'father of sweat,' as it was traditionally used to induce perspiration.
- 🌱 Borage flowers can be frozen in ice cubes and used to chill drinks while adding visual appeal—a popular garnish for summer cocktails and lemonades.
- 🌱 The plant is a prolific self-seeder; if allowed to set seed, borage will often return year after year in the same garden spot, sometimes considered a welcome 'volunteer' or occasionally an invasive nuisance depending on garden preferences.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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