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Black-Eyed Susan, Gloriosa Daisy
Rudbeckia hirta
Short-lived perennial. Long, branching, hairy stems growing up from a basal rosette. Bright to dull green, lance-shaped, hairy leaves with toothed margins. Daisy-like, 3 to 7 inch flowers. Commonly yellow petals surrounding a brown central cone. Several cultivars with varying flower color, including multicolor. Flowers attract butterflies and bees. Seed are a food source for birds. May reseed into the landscape. Does best with amended soils and some afternoon shade.
- Plant type: Annual, Perennial
- Maintenance level: Low
- Water requirement: Low
- Sun exposure: Full, Part Sun
- Height range: 1–3 Feet
- Width range: 1–3 Feet
- Canopy value: 3 ft²
- Growth rate: Medium
- Seasonal habit: Deciduous
- Flower color: Orange, Yellow, Red
- Flower season: Summer, Autumn
- Fruit color: Brown
- Fruit season: Autumn, Winter
- General foliage color: Green
- Design style: Pollinator Plants
- Hardiness cold tolerance: -10 °F
- Soil preference: Sand, Clay, Loam, Well Drained
- Native location: Eastern and Central U. S. , Canada
- PH preference: Acidic, Neutral, Not Particular
- Sunset zones: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
- USDA hardiness zone: 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b
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