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White Pickerel Weed

Pontederia cordata (pon-te-DARE-ee-uh kor-DAY-tuh AL-ba)

Family: Pontederiaceae Native Herbaceous (1-3 ft)

White Pickerel Weed is a native herbaceous emergent in the Pontederiaceae family, growing in shallow water up to 10 inches deep. This plant performs a phyto-purifying action, and is often used to improve water quality. It is found in all areas of North Carolina. Its leaves look almost tropical and provide food and shelter for many animals. The tall spikes of white flowers last from summer through fall and attract many pollinators. Dragonfly use this to lay their eggs as well as for perching and roosting. The larvae use the stems to climb out of the water. The flowers are held well above the water for a showy long season display. Use this plant along bogs, ponds, or streams. It can also be grown in a large container or water gardens. It is very important to maintain water depths greater than saturation, but shallower than the leaves year-round. Insects, Diseases, and Other Plant Problems: No serious problems. More information on Pontederia cordata .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 60 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft) Optimal soil pH Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Full plant profile

Growing Conditions
Plant type
Edible; Herbaceous Perennial; Native Plant; Water Plant; Wildflower
Life cycle
Perennial
USDA zones
5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; High Organic Matter; Loam (Silt)
Soil pH
Neutral (6.0-8.0)
Soil drainage
Frequent Standing Water
Available space
3 feet-6 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 2 ft. 0 in. - 2 ft. 6 in. | Width: 1 ft. 0 in. - 2 ft. 0 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Clumping; Prostrate; Spreading
Texture
Medium
Foliage
Deciduous
Leaf color
Gray/Silver; Green
Leaf type
Simple
Leaf shape
Cordate; Lanceolate
Leaf margin
Entire
Leaf feel
Glossy; Smooth
Leaf value
Edible
Leaf size
> 6 inches long
Hairs present
No
Leaf detail
Glossy, heart-shaped leaves with swirled markings., indented at the base and tapers to a point.
Flower color
White
Flower value
Long Bloom Season
Flower form
Spike
Flower shape
Tubular
Flower size
3-6 inches
Flower detail
Spike of white ephemeral flowers. Strong odor.
Bloom time
Fall; Summer
Fruit type
Capsule
Fruit value
Edible
Fruit detail
The fruit is oblong and 3-celled with one seed that has toothed ridges. Displays from June to November.
Stem color
Green
Stem detail
Can reach 2' in height.
Wildlife & Ecology
Native status
Native
Origin
Eastern North America to Caribbean
Distribution
Canada, south through the United States, east of the Mississippi.
Wildlife value
Supports the specialized bee - Florilegus (Florilegus) condignus. Laying site for the adult dragonfly.
Attracts
Pollinators; Specialized Bees
Play value
Wildlife Food Source
Food & Medicine
Edible parts
Fruit; Leaves; Seeds
Harvest time
Fall
Fruit type
Capsule

Edibility

Seeds can be eaten raw or dried. Young leaves can be used in salads.

Landscape Use
Landscape location
Container; Pond; Riparian
Landscape theme
Butterfly Garden; Native Garden; Pollinator Garden; Water Garden
Design feature
Specimen
Garden tags
#specialized bees #nectar plant #pollinator plant #deciduous #frost tolerant #bee friendly #wet soils tolerant #malodorous #wildlife friendly #wildflower #herbaceous perennial
Problems & Resistance
Resistant to
Deer; Heat

Planted at Hunnicutt

Nobody’s planted this one yet.