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Common Name: Water Parsnip
Sium latifolium is a perennial plant that can grow up to 2.00 metres tall.
It has edible and miscellaneous uses.
The entire plant, and especially the root, is poisonous[
]. There is no firm proof of this[
Most of Europe, including Britain, excluding the northwest, Portugal, Greece and Turkey.
Fens and other wet places, often in water, avoiding acid conditions[
|Pollinators||Beetles, Flies, bees
Prefers a light, rich, moisture retentive soil in full sun[
]. A plant of wet ground and shallow water, it grows best in about 20cm of water[
Leaves - cooked[
]. Some caution is advised, see the notes above on toxicity.
An essential oil is obtained from the seed[
Seed - sow late winter to early spring in a cold frame. The seed can be slow to germinate[
]. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer if they are large enough. Otherwise, grow them on in a cold frame for their first winter and plant them out in the following spring.
Division in early spring just before new growth begins. Use the side roots[
]. Larger divisions can be planted out direct into their permanent positions. We have found it best to pot up the smaller divisions and grow them on in a lightly shaded position in a cold frame, planting them out once they are well established in the summer.