Hemlock waterparsnip (Sium suave)

Hemlock waterparsnip

Also known as: Waterparsnip

Hemlock waterparsnip is native to the wetlands of North America and Asia. A vast array of insects are attracted to its flowers and their nectar. Like most hemlocks, parts of this plant can be poisonous, and it is also very similar to far more toxic plants. Care should be taken around any species of hemlock.

Scientific classification

Species

Hemlock waterparsnip (Sium suave)

Carrots, ivies and allies

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60 cm to 1.2 m

Plant Height

60 cm to 90 cm

Spread

5 cm to 8 cm

Flower Size

White, Yellow, Green

Flower Color

Deciduous

Leaf type

5 - 32 ℃

Ideal Temperature

Images of Hemlock waterparsnip

Distribution of Hemlock waterparsnip

Distribution Map

Hemlock waterparsnip is naturally found in temperate regions of northeastern Asia. Its native range encompasses areas characterized by a cooler climate across the continent. Over time, hemlock waterparsnip has been introduced and has spread to various other regions, adapting to a variety of habitats while expanding its presence beyond its original territory.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Wet meadows and thickets, muddy shores

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Hemlock waterparsnip

Every week

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: Originating from marshy areas, hemlock waterparsnip thrives in moisture-rich conditions and requires weekly watering to prevent waterlogging. As an herbaceous perennial, hemlock waterparsnip's growth cycles depend on water availability, making consistent hydration essential during its active growing season.

Fertilize: Hemlock waterparsnip requires balanced NPK fertilization during the growing season, applied monthly in spring and summer, then reduced in fall and winter. Follow product label instructions to avoid nutrient burn, and adjust based on growth patterns. Consider environmental impacts when fertilizing near water bodies.

Pruning: Hemlock waterparsnip features delicate foliage and small white flowers. Prune in early to late spring to control growth, remove dead stems, and promote air circulation. Proper pruning enhances vigor and reduces pest risks. Consult reliable sources for further guidelines.

Propagation: Hemlock waterparsnip, a member of the Apiaceae family, thrives in wet habitats. Propagation by dividing root clumps during dormancy ensures genetic consistency and high success rates. Careful handling and replanting in moist soil help establish this plant, appealing to amateur horticulturists seeking effortless aquatic garden expansion.

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Images of Hemlock waterparsnip

Distribution of Hemlock waterparsnip

Care Guide for Hemlock waterparsnip

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