Borage is a hardy annual and can be sown outside in the early spring or in the fall and over wintered in mild climates. Direct sow up to 30 days after last frost or start indoors 4–6 weeks before last frost and transplant out after frost. Self-seeds, may spread easily in disturbed soil and be difficult to remove once established. Soil pH 5.1-7.0. Hardiness zones 3. Annual.
Usual seed life 3 years.
Planting Depth
1/4-1/2”Soil Temp. Germ.
60-75˚FDays to Germ.
7-14Plant Spacing
18–30”Row Spacing
5–6’Days To Maturity
50-60Full Sun,
Moist Well Drained