Borage
Borago officinalis
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Description
Borage, known as Starflower, is an annual herb native to the Mediterranean region. It is highly valued in agroecology and regenerative agriculture for its ability to attract pollinators, particularly bees, with its vibrant blue, star-shaped flowers. In a food forest, borage acts as a dynamic accumulator, drawing up trace minerals such as potassium and calcium from deep in the soil, which can be returned to the topsoil when the plant is used as green manure. Borage is an excellent companion plant for tomatoes, strawberries, and squash, enhancing their growth and flavor while deterring tomato hornworms. Historically, borage has been used in traditional medicine for its anti-inflammatory properties and as a culinary herb. Its presence in a garden supports biodiversity by providing habitat and food for beneficial insects, such as predatory wasps and hoverflies, which help control pest populations. Borage also plays a role in soil health by improving soil structure and fertility when used as a cover crop.
Growing Details
Borage thrives in full sun and well-drained soil. Before planting, prepare the soil by incorporating organic matter such as compost to improve fertility and drainage. Direct-seed outdoors after the last frost or start indoors 4-6 weeks earlier. Space plants about 30 cm apart to allow for growth. Mulch around the plants with straw or leaf mulch to retain moisture and suppress weeds. Borage is a self-seeding plant, so allow some flowers to mature and drop seeds for future growth. Harvest leaves an
Edible Parts
Leaves
Flowers
Nectar
Oil
Tags
Attracts Wildlife
Bee Friendly
Meadow
Visual Appeal
Easy Propagating
Oil
Colouring
Tea
Range (Based on GBIF Data)
The map shows known occurrence points of <strong>Borago officinalis</strong> recorded in scientific biodiversity databases.
Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> โ Global Biodiversity Information Facility
Location & Timing
native geo location: Native to the Mediterranean region
applicable geo region: Mediterranean
language used: en
Flowering:
beginning
of May for 90 days
Harvest:
beginning
of July for 30 days
Seed Start:
beginning
of March
Indoor Start:
beginning
of March
Transplant:
beginning
of May
Uses & Benefits
Edible Rating:
(4/5)
edible uses: Borage leaves and flowers are edible. The leaves have a refreshing cucumber-like flavor and can be used fresh in salads or cooked in soups. The star-shaped flowers are often used as a decorative garnish in drinks and desserts. Borage flowers can also be candied for use in confectionery. The plant is rich in vitamins and minerals, particularly calcium and potassium. It is important to note that while borage is nutritious, it should be consumed in moderation due to the presence of pyrrolizidine al
Medicinal Rating:
(3/5)
medicinal uses: Borage is traditionally used for its anti-inflammatory properties. The plant contains gamma-linolenic acid (GLA), which may help with skin conditions such as eczema and support hormonal balance. Borage oil, derived from the seeds, is a popular supplement. However, due to the presence of pyrrolizidine alkaloids, it is advised to use borage in moderation and under professional guidance. It is important to avoid long-term use to prevent potential liver damage.
health concerns: Borage contains pyrrolizidine alkaloids, which can be toxic to the liver if consumed in large quantities over time. It is advised to use borage in moderation and to avoid long-term use.
other uses: Borage can be used as a mulch or green manure to improve soil fertility. It is also valued for its ability to attract beneficial insects.
Scientific Literature
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Botanical data
specie: Borago officinalis
common names: Starflower; Bee Bush; Bee Bread
family: Boraginaceae
sub family:
tribe:
sub tribe:
genus: Borago
Growing Conditions
area needed: 0.5 m
spacing: 0.3 m
growing difficulty: Low
Deciduous / Evergreen: Evergreen
Seed Temp (Opt/Min/Max): 20ยฐC / 15ยฐC / 25ยฐC
Plant Temp (Opt/Min/Max): 20ยฐC / 10ยฐC / 30ยฐC
water demands: Medium
humidity:
light demands: High
root type: Medium
frost tender: Medium
hardness:
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(7/10)
first harvest: 0 years
life span: 1 years
succession: Pioneer
growth rate: Fast
max height: 1.0 m
max width: 0.5 m
soil preference:
Medium (Loam)
pH preference:
Neutral
flower type:
Hermaphrodite
growth details: Borage thrives in full sun and well-drained soil. Before planting, prepare the soil by incorporating organic matter such as compost to improve fertility and drainage. Direct-seed outdoors after the last frost or start indoors 4-6 weeks earlier. Space plants about 30 cm apart to allow for growth. Mulch around the plants with straw or leaf mulch to retain moisture and suppress weeds. Borage is a self-seeding plant, so allow some flowers to mature and drop seeds for future growth. Harvest leaves an
Potential Disturbances: Borage is generally resilient but can occasionally attract aphids and caterpillars. Introducing beneficial insects and using garlic spray can help manage these ecological pressures.
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