How to Grow Red Water Lily
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Red Water Lily
Nymphaea rubra
flowerRed water lilies are aquatic flowering plants that bloom with vibrant crimson to deep red flowers on the water's surface. They are rooted in pond or water garden substrates and produce large, round floating leaves that provide shade and habitat for aquatic life. These ornamental plants are prized for their stunning blooms and ability to thrive in various water conditions.
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Example Red Water Lily timeline · Pittsburgh, PA (Zone 6b)
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Plant Red Water Lily
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 Red Water Lily blooms
Around May 17≈ 30 days after planting
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 4-11; tropical varieties prefer zones 9-11, hardy varieties zones 4-8
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Dormancy/Establishment
2-4 weeksFreshly planted rhizomes begin to root and develop initial shoots beneath the soil
Plant in spring as water warms; ensure stable water temperature above 60°F; avoid disturbing newly planted rhizomes; maintain water clarity
Vegetative Growth
3-6 weeksFirst floating leaves appear and expand on water surface; plant develops strong root system and secondary shoots
Thin leaves if they crowd the water surface to allow light penetration; apply aquatic fertilizer every 2-3 weeks; monitor water quality; ensure 6+ hours of daily sunlight
Bud Formation
2-4 weeksFlower buds develop among the floating leaves; buds gradually rise to water surface
Continue fertilizing every 2 weeks; ensure optimal sun exposure; maintain water depth and temperature (65-75°F ideal); remove excess foliage if shading buds
Flowering
3-4 months (mid-summer through early fall)Vibrant red blooms open at or just above the water surface; flowers typically open in morning and close in afternoon; multiple blooms may develop simultaneously
Deadhead spent flowers by removing below water level to encourage continuous blooming; maintain consistent watering and nutrient levels; avoid water splashing on open flowers; fertilize biweekly
Senescence
4-8 weeksBlooms decrease as temperatures cool in late fall; foliage yellows and deteriorates; plant begins dormancy
Stop or reduce fertilizing as growth slows; remove dead foliage to prevent water degradation; hardy varieties will survive winter dormancy; tropical varieties may die back or require moving indoors in cold climates
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Remove adult beetles by hand; spray water spray to dislodge larvae; introduce natural predators like dragonfly nymphs; avoid pesticides that harm aquatic life
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Remove affected leaves below water surface; improve water circulation; use netting to exclude adults; biological control with parasitic wasps
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Spray infested areas with strong water jet; introduce beneficial insects like ladybugs; use insecticidal soap safe for aquatic environments
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Ensure adequate water circulation and aeration; avoid planting in poorly draining substrates; remove and replace affected plants; treat with copper fungicide formulated for aquatic use
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Remove affected portions of rhizome; improve water quality; ensure proper spacing for air circulation; use sterile tools when handling plants
Uses
Edible flowers and rhizomes
CulinaryWater lily flowers and seeds are edible components in traditional Asian cuisines, particularly in Thailand, China, and India. The rhizomes are starchy and can be cooked like potatoes, while flowers are used as garnishes and in teas. [source]
Traditional herbal medicine
MedicinalWater lily has been used in Ayurvedic and Traditional Chinese Medicine to treat inflammation, fever, and digestive issues. The flowers and leaves contain alkaloid compounds with potential anti-inflammatory and cooling properties. [source]
Ornamental water garden display
HouseholdRed water lilies are premier ornamental aquatic plants that provide stunning visual focal points in ponds, water gardens, and large containers. Their floating blooms and foliage create serene water features that enhance outdoor living spaces. [source]
Aquatic ecosystem support
WildlifeWater lily leaves provide shade and shelter for fish, amphibians, and aquatic insects, while flowers attract pollinators including bees and dragonflies. The plants help oxygenate water and provide food sources for aquatic fauna. [source]
Dried flower arrangements and crafts
CraftWater lily flowers can be pressed, dried, or freeze-dried for use in floral arrangements, botanical art, and crafting projects. Their vibrant red color and distinctive form make them striking decorative elements. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Water lilies are ornamental flowers; harvest blooms by cutting stems just below the flower head in early morning when fully open, typically 3-4 inches below water level. Use a sharp, clean knife and recut stems at an angle before placing in fresh water. Blooms last 3-5 days in a vase. For seed collection, allow flowers to mature and develop seed pods, harvest when pods turn brown and dry, then extract and dry seeds before storing.
Fun Facts
- 🌱 Water lilies are one of the oldest flowering plants, with fossil records dating back over 100 million years; they inspired Claude Monet's famous Water Lilies paintings series
- 🌱 Red water lilies can produce up to 20 blooms per season, with each flower lasting 3-5 days and opening in early morning before closing at dusk
- 🌱 The giant Victoria water lily, a relative, has floating pads strong enough to support the weight of a human child due to their specially reinforced structure and cellular design
Gardening Terms
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