Marsh felwort (Lomatogonium rotatum)

Marsh felwort

Marsh felwort is especially well adapted for salt tolerance, and this allows it to thrive in coastal environments. It is listed as 'rare' and 'threatened' in some areas of the US, where livestock grazing and changes to the water table are thought to be harming the plant. The species is commonly known as Marsh felwort in reference to its preferred damp habitats.

Scientific classification

Species

Marsh felwort (Lomatogonium rotatum)

Gentians, dogbanes, madders, and allies

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Annual, Biennial

Lifespan

10 cm to 20 cm

Plant Height

White, Purple, Blue

Flower Color

Semi-evergreen

Leaf type

Images of Marsh felwort

Distribution of Marsh felwort

Distribution Map

Marsh felwort is a plant with a natural range that extends across the northern hemisphere, notably within temperate and subarctic regions of Eurasia. Its presence in both eastern and western Eurasia suggests a broad tolerance for varying climates within these major regions. While specifics on introduced ranges are not provided, the plant is not commonly known for widespread cultivation.

Native

Cultivated

Invasive

Introduced

No species reported

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Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Marsh felwort

Every week

Water

Full sun

Sunlight

Water: Originating from wetland habitats, marsh felwort requires consistent moisture, preferring weekly watering to ensure optimal soil hydration. This herbaceous plant's growth and flowering are linked to its watering habits and seasonal rainfall, thriving in environments mimicking its native moist conditions.

Fertilize: For marsh felwort, apply balanced nutrition fertilizer monthly during the growing season, optionally using high-nitrogen fertilizers for leaf growth. Fertilization boosts overall health but should be used sparingly to prevent root burn. Dilute fertilizer to half-strength and ensure soil is moist before applying.

Pruning: Marsh felwort thrives in marshy habitats, featuring delicate blue flowers. Prune after late spring bloom for healthy growth. Remove dead or diseased stems with sanitized tools to prevent infection. Pruning enhances air circulation, minimizes fungal issues, and aligns with early growth for optimal regeneration.

Propagation: To germinate marsh felwort, use a moisture-rich substrate without waterlogging. Surface-sow seeds lightly under soil or vermiculite, and consider gentle scarification. Seedlings need gradual acclimatization to permanent wetland-like conditions for successful growth.

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