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Borage Seeds

Borago officinalis Bleue
Borage, Starflower

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Borage is an excellent plant to have in the vegetable garden. Both its leaves and starry blue flowers are edible: as well as looking attractive in summer salads, they are packed full of nutrients. Borage is also a great companion plant and can be used as green manure.
Ease of cultivation
Beginner
Height at maturity
60 cm
Spread at maturity
20 cm
Soil moisture
Moist soil
Germination time (days)
8 days
Sowing method
Direct sowing, Sowing under cover
Sowing period March to June, September to October
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Flowering time April to August
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Harvest time March to October
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Description

Borage is an excellent plant to have in the vegetable garden. Its starry cobalt blue flowers are loved by bees and are great used as a garnish or tossed in summer salads. Grown as a companion plant to lettuce or potato plants, it will keep slugs and beetles from nibbling away at the young shoots. Both flowers and leaves are edible and are rich in vitamin C. Once borage reaches the end of its life cycle, it can be used as green manure. It is also known for its many medicinal properties.

Borage has been consumed for hundreds as years. The young, tender leaves bring flavour to salads. They can also be cooked and eaten like chard. Both leaves and flowers, fresh or dried, can be brewed to make cucumber-flavoured herbal tea. Borage has softening, diuretic properties as well as being rich in vitamin C, magnesium and potassium.

Good to know: Borage benefits from a supply of manure or well-rotted compost (3 kg/m²) in late autumn or early spring.

Harvesting and storage: for immediate use, harvest the leaves and flowers as and when required. Otherwise, wait until the plant starts to flower, then leave to dry in a well-ventilated room. The leaves are tastiest picked young, about 30-45 days after sowing.

Harvest

Harvest time March to October
Type of vegetable Leaf vegetable
Use Table

Plant habit

Height at maturity 60 cm
Spread at maturity 20 cm
Growth rate normal

Foliage

Foliage persistence Annual
Foliage colour dark green

Botanical data

Genus

Borago

Species

officinalis

Cultivar

Bleue

Family

Boraginaceae

Other common names

Borage, Starflower

Origin

Mediterranean

Annual / Perennial

Annual

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Planting and care

Early sowing: sow in pots in March. Cover the seeds with 2-3 cm of light soil. After about 30 days, the seedlings will be strong enough to be transplanted. Make sure to leave about 30 cm between each plant.

Direct sowing: direct sow from March to June. Borage tends to self-seed quite easily. Make sure to pick the flowers before they go to seed if you don’t wish to see it popping up all over the garden the following year!

Seedlings

Sowing period March to June, September to October
Sowing method Direct sowing, Sowing under cover
Germination time (days) 8 days

Care

Soil moisture Tolerant
Disease resistance Good
Pruning No pruning necessary

Intended location

Type of use Border, Vegetable garden
Hardiness Hardy down to -18°C (USDA zone 7a) Show map
Ease of cultivation Beginner
Exposure Sun, Partial shade
Soil pH Any
Soil type Silty-loamy (rich and light), 130

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