Wideleaf Waterparsnip
Sium latifolium
- Native to:
- Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, China, Czechia-Slovakia, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Kazakhstan, Netherlands, North Caucasus, NW. Balkan Pen., Poland, Romania, Russia, Spain, Sweden, Switzerland, Transcaucasus, Ukraine
Source: Wikimedia | License: CC BY-SA 2.0 | Artist: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/33239614@N02/">Jeremy Halls</a>
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Apiaceae
- Genus:
- Sium
- Species:
- Sium latifolium
- USDA Symbol:
- SILA22
Growth Characteristics
- Height:
- 150 cm
- Light Requirements:
- Full Sun,Part Shade
- Drought Tolerance:
- Low
- Bloom Months:
- jun,jul,aug,sep
- Bloom Colors:
- white
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★☆☆ Butterfly & moth species supported by this genus (NWF)
Garden & Ecology Notes
- Wildlife Value:
- bees, flies, butterflies, birds
Soil Requirements
- Soil Type:
- rich, moisture-retentive loamy soil
- pH:
- 6.0 - 7.5 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- commonly found in wetlands and marshes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds require cold-moist stratification and consistently wet conditions for germination.