scientific name: Ferula assa-foetida
Succeeds in most soils. Prefers a deep fertile soil in a sunny position. This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c. Plants have a long taproot and are intolerant of root disturbance. They should be planted into their final positions as soon as possible. Monocarpic, the plant takes some years before it flowers and dies after flowering. In Britain, the plants usually flower afterabout 5 years. The whole plant, especially when bruised, has an unpleasant smell like stale fish.
Seed - best sown as soon as the seed is ripe in a greenhouse in autumn. Otherwise sow in April in a greenhouse. Prick out the seedlings into individual pots as soon as they are large enough to handle. Plant them out into their permanent positions whilst still small because the plants dislike root disturbance. Give the plants a protective mulch for at least their first winter outdoors. Division in autumn. This may be inadvisable due to the plants dislike of root disturbance.