Comfrey - Symphytum officinale - 30 seeds
Comfrey leaves can be harvested several times a season and used as a compost activator to help breakdown other compost materials. This perennial herb is also used as a mulch, and makes superb liquid manure on tomato and potatoes plants. Height: 120 cm. Spread: 150 cm.
Direct sow symphytum seed outdoors from March to June in moist, fertile, well drained soil in a sunny position. Sow seed thinly at a depth of cm in rows 3 cm apart. When large enough to handle, thin seedlings to 60 cm apart. Alternatively sow Comfrey seeds in pots or trays under glass and transplant them outdoors when plants are well grown.