A confirmed obligate wetland species and one of the most recognizable native aquatics available, white water lily's shading leaves help suppress algae growth while its buoyant seeds feed waterfowl directly - though it's worth knowing this same adaptability has made it a regulated species of concern in some states and an invasive exotic in others.
Species Overview
Nymphaea odorata, or American white water lily, is a native aquatic perennial found in lakes, ponds, and slow-moving waters across nearly all of North America. It features large, round, floating leaves and fragrant, white flowers up to 6 inches across that open in the morning and close by afternoon, blooming from late spring to mid-summer.
Application
Pond and lake restoration - confirmed obligate wetland species
Water garden centerpiece plantings
Algae control via shading - broad floating leaves reduce light penetration
Wildlife habitat - seeds and rhizomes feed waterfowl and mammals
Growing Conditions / Specification Data
Light: Full Sun to Part Shade
Soil/Moisture Tolerance: Aquatic - any pond bottom, standing water from about 18 in. to 5 ft. deep
Plant Type: Forb (aquatic)
Fall Color: Insignificant/None
Bloom Color / Period: White; June-August
Wetland Indicator Status: OBL (Obligate Wetland)
Native Range: Northeast/Mid-Atlantic (full list)
Pollinator Value: Supports bees - abundant pollen attracts a wide variety of insects including bees, flies, and beetles.
Hydrology: Aquatic/Saturated
Root Depth: Shallow (Under 12 in.) (rhizomatous, rooted in mud substrate rather than soil depth)
Salinity Tolerance: None
Growth Rate: Moderate
Drought Tolerance: None
Deer Resistance: Yes (Rarely Damaged)
Flood Tolerance: High - Rated a Wet hydrology species in a formal stormwater vegetation reference table; a true aquatic species rooted in standing water.
Shade Tolerance: Intolerant - cannot grow in shade
Growth Habit: Spreading - rhizomatous, forms extensive colonies
USDA Hardiness Zones: 4-10
Planting Guidance
Plant rhizomes at the edge of a container so they can spread horizontally; barely cover with soil and keep within 6-8 in. of the water surface until new leaves appear.
