Growing Borage: Companion Planting, History, and Harvest Tips

Overview

Borage (Borago officinalis) charms with electric‑blue flowers and cucumber‑scented leaves. Though an annual, it self‑seeds prolifically, returning each year. Beyond beauty, it’s a legendary companion plant, culinary herb, and historical curiosity.

Growing Basics

Sow seeds directly after last frost, 12–15 inches apart, in full sun and light, well‑tilled soil. Height varies 12–30 inches by variety. Thin seedlings to prevent overcrowding.

Companion Plant Superstar

Strawberry growers interplant borage to boost yields—its flowers attract pollinators. The herb’s scent also repels tomato hornworms, making it a classic tomato companion.

Beauty & Skin Care

Herbalist Barbara Griggs recommends fresh flowers in facial steams, mashed into egg‑yolk masks, or added to oatmeal baths for dry, irritated skin. Cold‑pressed seed oil (high in gamma‑linolenic acid) is prized by massage therapists and soap makers.

Historical Lore

• Homer’s nepenthe (forgetfulness wine) contained borage per Pliny & Dioscorides.
• Medieval painters copied its blue for the Virgin Mary’s robes.
• Crusaders drank borage‑infused wine for courage.
• Culpeper prescribed fresh flowers for melancholy; burned ash in mead for cold sores.
• Poultices treated wounds and bruises—a practice still endorsed.

Culinary Highlights

Young leaves in Pimm’s Cup, claret cup, green salads, yogurt‑cucumber dishes. Cooked leaves substitute for spinach. Flowers crystallize beautifully for cake decorating.

Fun Facts

• Burns with crackling sparks (potash content).
• Name from Celtic “borrach” (courage).
• Research suggests adrenal‑stimulating compounds may underlie its reputation for bravery.