Dutch name Zwolsche krul. This is the curled leaf form of celery, similar in appearance to curled parsley. Can be slow to germinate , but forms a vigorous plant up to 30 cm tall. Cold tolerant, may be autumn sown.
The growing plant is an insect repellent, it repels the cabbage white butterfly so is a good companion for brassicas.
Prefers a rich light moist soil with some shade in summer.
Surface sow February in a greenhouse. The maincrop can be sown as late as mid-April. Outdoor sown seed rarely germinates satisfactorily. Germinates in 2 - 3 weeks at 15°c. Plant out in May.Edible uses
Leaves - raw or cooked. A strong savoury flavour, they can be used as a flavouring in soups etc. The leaves can also be eaten raw but many people find the flavour too strong. They are more acceptable raw when used as a minor ingredient in a mixed salad.
Seed - a flavouring. An essential oil from the seed is also used as a flavouring.