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Tufted loosestrife

Lysimachia thyrsiflora

Also called Tufted Yellow Loosestrife, Swamp Loosestrife, Water Loosestrife, Yellow Loosestrife

Tufted loosestrife
Photo: Krzysztof Ziarnek, CC BY-SA 3.0

Tufted loosestrife is a perennial herb of wet ground, growing up to about 80 cm tall with yellow flowers. It thrives in marshes and pond or lake edges, so keep its roots consistently wet.

Family
Primulaceae (Primul family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Keep the soil constantly moist or standing in shallow water.
Soil
Wet, heavy soil or boggy mud, rich in organic matter.
Temperature
Hardy in cold temperate winters; tolerates frost well.
How easy
Easy
Native range
Subarctic & Temp. Northern Hemisphere
Climate
temperate

About

Lysimachia thyrsiflora, the tufted loosestrife, is a plant in the genus Lysimachia. It is native to large sections of the northern Northern Hemisphere, including Eurasia and North America. It often grows in marshes, shorelines of lakes and ponds and occasionally along streams. It is an erect perennial herb growing up to 80 centimeters (31 in) tall and bearing yellow flowers, sometimes dotted with purple. It may be confused with purple loosestrife when not blooming but can be easily distinguished because purple loosestrife has a square stem. Tufted loosestrife has been used medicinally in Asia to combat high blood pressure.

Other Lysimachia plants

Lysimachia foemina · Lysimachia minima · Lysimachia monelli · Pimpernel · Scarlet pimpernel · Roughleaf yellow loosestrife · Azorean Loosestrife · Manchurian yellow loosestrife · Fringed loosestrife · Gooseneck yellow loosestrife · Mixed Yellow Loosestrife · Dense Flowered Loosestrife

Text excerpted from the Wikipedia article Lysimachia thyrsiflora by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

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