Partridge Pea
FlowerChamaecrista fasciculata
Have seeds for this? Add to inventory →Partridge Pea is a cheerful native annual legume producing bright yellow flowers throughout summer that attract specialist native bees and provide critical habitat support. It is also a nitrogen-fixer, an important food plant for bobwhite quail and game birds, and one of the easiest native annuals to establish in dry, sunny, disturbed sites. It reseeds reliably to maintain itself year after year.
Native Range
- Origin
- Native to eastern and central North America.
- Native Habitat
- Sandy prairies, open disturbed ground, roadsides, field margins, and early successional habitat.
- Current Distribution
- Widespread across eastern and central North America within native range; used extensively in native plant restoration and wildlife habitat plantings.
Growing Conditions
Sunlight
Full Sun
Water Needs
Low
Soil
Sandy, well-draining, infertile soil; pH 5.5 - 7.5; does not require rich soil
Spacing
12 - 18 inches
Days to Maturity
Blooms June - September from spring sowing; reseeds annually
Growing Zones
Thrives in USDA Zones 3 - 10
Companion Planting
Keep Away From
No known antagonists
When to Plant
Direct Sow
Scarify seed and direct sow after last frost when soil reaches 65°F; or sow in autumn for spring germination
Harvest
Collect seed pods in late summer before they fully dehisce; pods split explosively when ripe
Phenology (Natural Timing Cues)
Direct Sow
Partridge Pea is one of the easiest native annuals to establish from seed. Scarify the hard seed coat by rubbing briefly on sandpaper or nicking with a file, then sow directly into the garden after last frost. It grows rapidly in warm conditions and blooms within 8-10 weeks of germination. In established gardens it reseeds reliably and should be considered a permanent resident once started. Lean, dry soil is preferred; rich soil produces lush foliage with fewer flowers.
- Sow after last frost when soil has warmed to 65°F.
- Scarify seed before sowing for best germination.
- Choose a lean, dry, sunny site - avoid rich or amended soil.
- Autumn sowing also works; seed overwinters and germinates the following spring.
Start Dates (Your Location)
Based on your saved growing zone and this plant's timing notes.
Typical Last Frost
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Typical Harvest Window
June to September
Organic Growing Tips
Allow some seed pods to mature and split naturally for self-seeding the following year.
Plant in drifts of 10 or more plants for maximum ecological impact; small isolated plantings are less effective.
Do not deadhead - seed pods are food for quail, wild turkey, and other game birds.
Leave stems standing through winter to provide overwintering habitat for native bees and beneficial insects.
Common Pests
- Bean Leaf Beetle
- Aphids
All pest management in Garden uses safe, organic, non-toxic methods only. No synthetic pesticides, ever.
Taxonomy
- Kingdom
- Plantae
- Family
- Legume family (Fabaceae)
- Genus
- Chamaecrista
- Species
- fasciculata
Natural History
Chamaecrista fasciculata is native to open, disturbed habitats, sandy prairies, roadsides, and field margins across the eastern and central United States, from New England south to Florida and west to the Great Plains. It is a nitrogen-fixing annual legume that plays an important ecological role in early successional plant communities, colonizing disturbed ground and improving soil for subsequent plant species. The yellow flowers produce no nectar but provide abundant pollen, making them particularly attractive to specialist native bees including Calliopsis andreniformis and several Megachile species that buzz-pollinate the flowers to release pollen. The plant is one of the primary food sources for bobwhite quail, which consume the seeds extensively during autumn and winter. The common name "partridge pea" reflects this strong wildlife association. Partridge Pea is also a larval host plant for three butterfly species: the cloudless sulphur, the sleepy orange, and the little yellow - making it one of the more ecologically dense native annuals relative to its size.
Morphology (Plant Structure & Identification)
Root System
Taproot with nitrogen-fixing nodules when compatible rhizobial bacteria are present; not deep; roots decompose quickly after the plant dies in autumn.
Stem
Erect to spreading, branching stems 12 - 30 inches tall; slightly hairy; reddish-green.
Leaves
Compound leaves with 10 - 15 pairs of small, oblong leaflets that fold closed when touched (sensitive to touch); attractive fine-textured foliage.
Flowers
Five-petaled bright yellow flowers 1 inch across with dark anthers; flowers are pollen-only (no nectar); bloom continuously from June through September.
Fruit
Flat, hairy seed pods 1.5 - 2.5 inches long; ripen to dark brown; split explosively to scatter 6 - 12 seeds several feet from parent plant.
Known Varieties
Common cultivars worth knowing
- Best for: Prairie restoration, wildlife habitat, dry sunny sites, nitrogen fixation
Straight Species
Seed-grown Partridge Pea; the only widely available form and the ecologically most valuable.
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