Great water-parsnip

Sium latifolium

Sium

Apiaceae

Native Plants

Zone 5–10

🐾 Pet-Safe

Great water-parsnip is a robust aquatic or marginal perennial best suited to pond margins, ditches, and wet meadow gardens. It requires constantly moist to waterlogged soil and a position with full sun to partial shade, producing attractive white umbel flowers in summer that are popular with pollinators. This is a specialist plant for wildlife ponds and wetland restoration projects rather than general home gardens.

Care Requirements

Care Level

Moderate

Sun

Partial Sun

Water

Moderate

Growth Rate

Moderate

Mature Height

12″ – 36″

Soil

loam

Life Cycle

Perennial

Spacing

18″

Watering Schedule

Every 5-7 Days Or As Needed To Keep Soil Wet • Water Generously And Consistently; Plant Thrives In Waterlogged Or Boggy Conditions

Soil pH

7 – 7.5

Temperature

-20° – 85°F

Mature Spread

up to 24″

Root Depth

Medium

Foliage

Medium

Propagation: Seed, Cutting

Ecology & Origin

Native to

Albania

Altay

Austria

Baltic States

Belarus

Belgium

Bulgaria

Buryatiya

Central European Rus

Chile Central

Chile North

Czechoslovakia

Denmark

East European Russia

Finland

France

Germany

Great Britain

Greece

Hungary

Attracts

🐝 Bees

🐝 Butterflies

🐝 Moths

Sources

Data: trefle, usda

Image: trefle.io — Taken Aug 14, 2021 by David Scott (cc-by-sa)

Hardiness Zones

Check your zone:

Available From (0)

No nurseries currently have this species in stock.