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Herbaceous

Black-eyed Susan

Rudbeckia hirta

Perennial with edible flower petals (raw), seeds (birds). Native Oklahoma wildflower; foundation pollinator plant for all food forests

NativeEdiblePollinatorWildlife
At a Glance

What to know before finding it a place.

SunFull sun
WaterLow water
System layerHerbaceous
Plant typePerennial
Plant spacing12-18 in apart
Mature size2-3 ft / 2 ft
Chill hours0-500
Soil pH6.0-7.5
HarvestJun–Oct
Expected yieldSeeds and petals (limited edible)
TrellisNo
Central Oklahoma

Growing notes for our conditions.

Regional fit still depends on the actual site—especially drainage, exposure, irrigation, soil and the specific cultivar selected.

Oklahoma notes

Native Oklahoma wildflower; foundation pollinator plant for all food forests

Disease resistance

Excellent

Pruning

Leave seed heads for birds; divide every 3-4 years

Care

Native; petals have mild flavor; mainly grown for pollinators and wildlife; easy care

Drought tolerance

High once established

Pollination & Production

Plan the partners before planting the tree.

Pollination reference

For fruiting plants, compatible bloom timing and nearby partners can matter as much as the cultivar itself.

PollinationSelf-fertile
Compatible partners–
Variety Selection

The cultivar can matter as much as the species.

These references help narrow the large number of named varieties to options better aligned with Zone 7A conditions, disease pressure and useful harvest windows.

Zone 7A Recommended Varieties

Indian SummerPrairie SunGoldsturmCherokee Sunset

These are recommendations carried in the Organix Zone 7A reference database. They are not automatically the same as a cultivar personally proven by Organix on every site; site conditions and availability still matter.

Landscape Role

How this plant can function in a larger system.

Landscape functions

Edible (limited); Attractor

Edible parts

Flower petals (raw), Seeds (birds)

Companion plants

Echinacea, Yarrow, Native grasses

Community / companion role

Pollination: Self-fertile; Companions: Echinacea, Yarrow, Native grasses

Food-forest layer

Herbaceous

Oklahoma classification

Primary

Soil, Fertility & Care

Support the plant without overcomplicating the system.

Soil preferences

Preferred pH 6.0-7.5

KNF / fertility schedule

Minimal

Maintenance

Leave seed heads for birds; divide every 3-4 years

Use this as a planning reference.

Plant performance varies with microclimate, soil, drainage, water, maintenance and cultivar. Organix uses the library to narrow good candidates, then makes final selections around the actual site.

Edible and medicinal tags describe traditional or practical plant uses in the landscape and are not medical advice. Always verify identification, preparation and individual suitability before consuming a plant.