Winged Loosestrife
Lythrum alatum
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Perennial
Height
36 inches
Width
24 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Moderate
Humidity
Average
Lifespan
Perennial
Native To
North America
Toxicity
Non-toxic
The Story
Plant Bio
Lythrum alatum, commonly known as Winged Loosestrife, is a perennial plant featuring upright stems, lance-shaped leaves, and spikes of purple flowers that attract pollinators throughout the summer. This species is distinguished by its winged stems, which provide a unique texture and visual interest, making it a notable addition to wet or moist garden settings.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck seeds into moist soil in early spring
- Water regularly until established
- Fertilize with balanced fertilizer in spring
- Divide clumps every 3–4 years in early spring
- Prune after flowering to maintain shape
- Mulch around base to retain moisture
Pro Tip
Ensure well-drained soil and full sun for best blooms
Keep It Thriving
Care Guide
Do
- Water during dry spells 🌱
- Prune dead flowers to encourage rebloom
- Divide every 3–4 years to prevent overcrowding
Don't
- Avoid overwatering in winter ❌
- Don’t cut back in late fall ❌
- Refrain from fertilizing with high nitrogen
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Prune | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Winged Loosestrife questions
What zones can Winged Loosestrife grow in?
Winged Loosestrife is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Winged Loosestrife deer resistant?
Not reliably. Deer may browse Winged Loosestrife, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Winged Loosestrife bloom?
Winged Loosestrife typically blooms in mid-summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Winged Loosestrife need full sun?
Winged Loosestrife does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
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Grow Winged Loosestrife with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
