Also known as Angled Purple Loosestrife · Northern Winged Loosestrife · Wing-Angle Loosestrife
Winged Loosestrife (Lythrum alatum) is a hardy perennial native to North America, featuring delicate pink-purple flowers and winged stems. It thrives in moist to wet soil
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun to Partial Shade
75% intensity
Blooms best in full sun but can tolerate some shade.
Consistent Moisture
75% intensity
Prefers moist soil but tolerates occasional drying.
Clay, Loam, Sand, Acidic, Neutral, Alkaline
50% intensity
Hardy
25% intensity
Tolerates a wide range of temperatures; cold hardy.
Light Feeding
25% intensity
Requires minimal fertilization; avoid overfeeding.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Winged Loosestrife thrives in consistently moist soil. Water regularly, especially during dry spells, to maintain soil humidity. Avoid waterlogged conditions, which can lead to root rot.
Aim for even moisture, checking the top few centimeters of soil before watering.
Deadhead spent flowers to encourage further blooming and prevent self-seeding. Cut back the plant in late autumn or early spring to remove dead or damaged stems and to maintain a tidy shape.
This also promotes vigorous new growth.
Winged Loosestrife can be easily propagated by division of clumps in early spring. Alternatively, stem cuttings can be taken in late spring or early summer and rooted in moist soil or water.
Seed can also be sown in autumn or early spring.
Repotting is generally only necessary for container-grown plants when they become root-bound, typically every 2-3 years. Do this in early spring before new growth begins.
Choose a pot only slightly larger than the current one, using well-draining potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Winged Loosestrife (Lythrum alatum)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Myrtales |
| Family | Lythraceae |
| Genus | Lythrum |
| Species | Lythrum alatum |
Similar in genus Lythrum
Answers based on plant encyclopedia data
