How to Grow Little Spatterdock
iNaturalist
Little Spatterdock
Nuphar microphylla
flowerA small aquatic plant in the water lily family (Nymphaeaceae) native to North America, characterized by diminutive heart-shaped leaves and small yellow flowers. It thrives in shallow, cool freshwater ponds, lakes, and slow-moving streams. This aquatic perennial is valued for its ornamental qualities and role in wetland ecosystems.
When should you plant Little Spatterdock in your zone?
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Example Little Spatterdock timeline · Pittsburgh, PA (Zone 6b)
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Plant Little Spatterdock
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 Little Spatterdock blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Little Spatterdock dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, preferring cooler northern waters
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Rhizome Establishment
2-3 weeksDormant rhizome planted in pond sediment with minimal visible growth
Ensure proper substrate depth and cool water conditions; avoid water temperature spikes
Vegetative Growth
3-4 weeksEmergence of underwater stems with small linear leaves, followed by heart-shaped floating and emergent leaves
Monitor water clarity; remove algae competitors; maintain consistent water level
Bud Formation
2-3 weeksSmall yellow buds appear on short pedicels above or at water surface
Ensure adequate sunlight exposure; apply aquatic fertilizer if nutrient-poor water
Flowering
4-8 weeks (intermittent blooms throughout growing season)Small yellow cup-shaped flowers (0.5-1 inch) bloom above water; petals and sepals present
Maintain stable water conditions; flowers typically open mid-morning; pollinated by insects
Seed Development & Dormancy
8-12 weeksFlowers fade; seed capsules form and ripen; plant gradually enters winter dormancy as water cools
Leave mature seed pods in place for wildlife; reduce fertilizer input; maintain water depth for winter survival
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove affected leaves; introduce natural predators like dragonfly nymphs; maintain water circulation
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Spray with water to dislodge; use insecticidal soap safe for aquatic environments; encourage natural predators
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Remove by hand; introduce predatory fish; maintain balanced ecosystem
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Improve water circulation; reduce nutrient load; add beneficial bacteria; limit direct sunlight duration
Uses
Wetland Wildlife Support
WildlifeProvides shelter, foraging habitat, and pollen sources for aquatic insects, waterfowl, and fish. The submerged and emergent leaves create structure for invertebrate communities essential to pond food webs. [source]
Traditional Indigenous Use
CulinarySeeds and rhizomes were traditionally gathered and eaten by Native Americans as a starch source, though rarely used in modern cuisine due to small size and limited abundance. [source]
Ornamental Pond Feature
HouseholdValued in native plant water gardens and ecological restoration projects for its delicate yellow flowers and minimal footprint, adding aesthetic appeal without aggressive spreading. [source]
Traditional Herbal Remedy
MedicinalHistorically used in Native American and folk medicine preparations for digestive and antiseptic purposes, though modern scientific validation is limited. [source]
Wetland Restoration & Bioindication
CraftUsed in wetland restoration projects as an indicator species for healthy, cool freshwater conditions; helps assess water quality and ecosystem health in conservation efforts. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Not typically harvested as this is an ornamental/ecological plant. Seeds can be collected when seed pods fully mature and brown in late summer/fall by allowing them to dry in situ, then extracting and storing in cool, dry conditions. For propagation, rhizomes can be carefully divided in early spring before active growth begins.
Fun Facts
- 🌱 Nuphar microphylla is one of the smallest species in the Nuphar genus, with leaves often less than 2 inches long, making it distinctly miniature compared to its larger relatives.
- 🌱 The common name 'Spatterdock' comes from the way the plant's seeds are forcefully expelled from ripened fruit capsules, spattered into surrounding water for dispersal.
- 🌱 This species is disjunct in its distribution, found in isolated populations across North America, suggesting relict populations from earlier climatic periods.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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