trefle.io · Taken Aug 14, 2021 by David Scott (cc-by-sa)
Apiaceae
Great water-parsnip
Sium latifolium
Also known as Sium latifolium, Greater water parsnip, Broadleaf water parsnip, Sium aquaticum
Native Plants · Aquatic · Marginal · Wetland · Pond · White Flowers · Umbellifera · Wildlife · Perennial · European Native · Water Garden
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.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water generously and consistently; plant thrives in waterlogged or boggy conditions · Every 5-7 days or as needed to keep soil wet
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -20°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed, Cutting
Hardiness
USDA 5a-10b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- 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: trefle, usda
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