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For successful seedlings,
see the growing notes at the bottom of the page!
White sweet clover (Melilotus albus), often called "boreal vanilla," is a biennial plant with delicate white flowers that emit a sweet, floral aroma reminiscent of both vanilla and tonka bean, yet entirely unique. This hardy plant can reach up to 1.2 metres in height and thrives in poor, well-drained soils. Young leaves can be added to salads, but the fresh flowers are especially prized for their enchanting scent, ideal for flavouring desserts and other culinary creations. A sweet clover essence can also be made by macerating the flowers in alcohol, similar to vanilla extract.
Medicinal and Culinary Uses
Sweet clover has several medicinal benefits. The flowers and leaves are antispasmodic, sedative, carminative, and mildly analgesic. In infusions, they are used to ease coughs, calm spasms, and promote relaxation. CAUTION: Sweet clover must be used with care due to its coumarin content, the compound that gives it its characteristic scent. If not dried correctly (stored away from light and with good ventilation to prevent fermentation), coumarin can convert into dicoumarol, a potent anticoagulant that may cause internal bleeding in high doses. For safety, consume fresh sweet clover or ensure a careful drying process.
Ecological Roles
White sweet clover is a vital nectar source for bees and other pollinators, especially mid-season when fewer plants provide abundant resources. Its ability to fix nitrogen enriches poor soils and enhances soil structure. In naturalized gardens, sweet clover supports pollinators while adding a pleasant fragrance and a delicate floral display.
Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.
Sowing and Growing
Technical Details
Seeds per packet: 250
Family: Fabaceae
Scientific name: Melilotus albus
Life cycle: Self-seeding biennial
Hardiness zone: 3
Soil type: Silty to clayey
Soil moisture level: Dry to medium
Soil - additional attributes: Well-drained, poor
Light: Sun, partial shade
Blooming: July to August
Spacing: 45 cm
Height: 120 cm
Deer resistance: High
Stratification: No
Scarification: Light
Germination time: 10 to 15
Sowing depth: 10 mm