Plant · P-113
Borage
Borago officinalis
Borage's flowers draw bees hard while they last, but in a hot climate that season is really just spring: growth collapses once summer heat sets in, though a second planting in autumn can carry it through a mild winter into an early spring show. The cucumber-flavored leaves and flowers work as a garnish, not a vegetable - the plant carries liver-toxic alkaloids that limit them to occasional use, so anyone with liver trouble should skip them. The seed oil is different: it is the plant's real medicinal yield, rich in gamma-linolenic acid, and it is safe where the leaves and flowers are not.
Record at a glance
Growing profile
- Sun
- Full Sun · Partial Sun
- USDA zone
- USDA 2–11
- Soil
- Sand · Silt · Loam · Clay
- Moisture
- Dry · Well-Drained · Moderate
Vertical layer
Herbaceous- Soil pH
- 4.8–8.3
- Plant type
- Annual
- Mature height
- 1.6–3.2 ft
- Mature spread
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The deeper layer