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Lythrum hyssopifolia
Also called Hyssop Loosestrife, Hyssop Leaved Loosestrife, Annual Loosestrife, Lesser Loosestrife, Small Loosestrife
Lythrum hyssopifolia (hyssop loosestrife, grass-poly) is a small annual or biennial herb in the loosestrife family, native to Europe and Asia and found as an introduced weed elsewhere. It thrives in wet ground, so keep the soil moist.
Lythrum hyssopifolia (orth. var. L. hyssopifolium) is a species of flowering plant in the loosestrife family known by the common names hyssop loosestrife and grass-poly. It is native to Europe but it is known elsewhere, including parts of Australia and eastern and western North America, as an introduced species and sometimes a weed. It is rare in the United Kingdom, with occasional isolated populations. It often grows in moist habitats, such as marshes and wet agricultural fields, rice paddies, for example.
It is a mostly upright, branching annual or biennial herb growing 10 to 60 centimeters (3.9 to 23.6 in) tall. The oval leaves are arranged oppositely lower on the plant, and often alternately toward the top. They are up to 3 centimeters (1.2 in) in length. The inflorescence is a terminal spike of flowers with pinkish petals up to half a centimeter (¼") long.
Purple-loosestrife · Threebract loosestrife · European wand loosestrife · Loosestrife
Text excerpted from the Wikipedia article Lythrum hyssopifolia 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.
