How to Grow Marsh Cinquefoil
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Marsh Cinquefoil
Comarum palustre
flowerMarsh cinquefoil is a semi-aquatic perennial wildflower native to wetland habitats across the Northern Hemisphere, characterized by distinctive deep purple-red flowers and compound leaves. It typically grows 6-24 inches tall and thrives in boggy, marshy, and waterlogged conditions. This hardy plant plays an important ecological role in wetland ecosystems and is valued by native plant gardeners for its unique coloring and ability to stabilize wet soils.
When should you plant Marsh Cinquefoil in your zone?
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Example Marsh Cinquefoil timeline · Pittsburgh, PA (Zone 6b)
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Plant Marsh Cinquefoil
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Marsh Cinquefoil blooms
Around Aug 15≈ 120 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Marsh Cinquefoil dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 2-7; prefers cool climates with consistent moisture
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Seed Stratification
4-6 weeks cold stratification, then 2-3 weeks to germinationSeeds require a cold period to break dormancy; they are very small and need light to germinate
Refrigerate seeds for 4-6 weeks before sowing. Sow on surface of moist seed-starting mix in spring. Keep consistently moist and cool.
Seedling
4-6 weeksTiny seedlings emerge with simple leaves; growth is initially slow
Maintain high moisture and cool conditions. Provide bright, indirect light. Keep soil waterlogged. Thin seedlings to prevent crowding.
Vegetative Growth
6-10 weeksPlant develops characteristic compound leaves with 5-7 leaflets; roots establish in wet substrate
Continue waterlogged conditions. Ensure consistent moisture and cool temperatures. In containers, keep water level just above soil surface. Space plants adequately.
Flowering
4-8 weeksDistinctive deep purple-red flowers with 5 petals appear on short stems above the foliage; blooms typically May-July
Maintain wet conditions. Deadhead spent flowers to potentially encourage continued blooming. Ensure adequate light for best flower production.
Seed Maturation
4-6 weeksFlowers fade and develop seeds within small capsules; foliage may begin to decline if water levels drop significantly
Allow seeds to mature and dry on plant if self-seeding desired. Continue maintaining wet conditions. Plants may die back in winter.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Manually remove; encourage ground beetles; use copper barriers in wet areas; avoid slug baits near water features
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Generally not damaging; maintain water circulation; remove excess algae
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Beneficial predators; do not control; they help manage mosquito populations
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Ensure adequate water movement; improve drainage if standing water becomes stagnant; remove affected plant material
Uses
Traditional Herbal Medicine
MedicinalIn traditional herbalism, particularly in northern European and Asian folk medicine, marsh cinquefoil has been used as a remedy for diarrhea, dysentery, and other gastrointestinal complaints due to its astringent properties. [source]
Wetland Habitat Support
WildlifeMarsh cinquefoil provides essential food and shelter for wetland-dependent invertebrates, waterfowl, and aquatic insects, making it valuable for ecological restoration and wildlife gardens. [source]
Bog and Wetland Gardening
HouseholdThis plant is a cornerstone species for creating authentic bog gardens, rain gardens, and water feature plantings, helping to stabilize soils and prevent erosion in wet areas. [source]
Historical Food Use
CulinaryHistorically, marsh cinquefoil roots have been consumed as a minor edible in northern climates, though modern culinary use is rare; the plant is better valued for ornamental and medicinal purposes. [source]
Dried Flower Arrangements
CraftThe distinctive dark flowers and fine foliage can be air-dried for dried flower arrangements and botanical crafts, adding unique color and texture to displays. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Marsh cinquefoil is primarily grown as an ornamental and ecological plant rather than for harvest. Allow flowers to bloom for landscape color (May-July). Collect seeds in late summer once capsules have dried on the plant; seeds can be stored dry in cool conditions for spring sowing. Harvest flowers or foliage for dried arrangements while still colorful.
Fun Facts
- 🌱 The name 'cinquefoil' comes from the French word meaning 'five leaves,' referring to the plant's characteristically compound leaves with five to seven leaflets.
- 🌱 Marsh cinquefoil is circumpolar in distribution, meaning it naturally occurs in wetlands across the Northern Hemisphere from North America to Europe to Asia, demonstrating remarkable cold hardiness.
- 🌱 Despite its small size, marsh cinquefoil has a fascinating life strategy—it can grow submerged in water, partially emerged, or on moist land depending on water levels, making it highly adaptable to fluctuating wetland conditions.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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