Great Coneflower, Rudbeckia Seed
Great Coneflower Rudbeckia Seed
- Late Spring-Early Summer bloom season
- Full Sun, Partial exposure
- Medium, Medium to Wet soil moisture
- 36–48 inches plant spacing
Key Attributes
About Great Coneflower, Rudbeckia Seed
Great Coneflower (Rudbeckia maxima) is a distinctive North American native plant. Tall blue-green foliage and prominent yellow flowers create a bold architectural presence, while mature seed heads feed songbirds. It matures at approximately 72 inches tall and flowers from late spring to early summer. Plant it in full sun to partial shade, in medium to medium-wet conditions, with loamy soil or clay soil. Space plants 36–48 inches apart for healthy growth and airflow.
Growing details
Plant profile
Seed & variety
Before Planting
Planting
Watering
Fertilizer
Harvesting
Tips
Pests & Diseases
Leaf spots and powdery mildew can occur when foliage remains wet or plants are crowded. Provide adequate spacing and airflow, water near the soil surface, and remove heavily affected plant debris. Avoid overhead watering late in the day.
Young plants may be damaged by slugs, snails, aphids, or other chewing and sap-feeding insects. Healthy established plants generally tolerate light feeding. Identify the pest before treatment and use the least disruptive control to protect visiting pollinators.
Native States & Regions
- Arkansas
- Louisiana
- Oklahoma
- Texas
Native regions: South Central
Great Coneflower Rudbeckia Native Range Map
Native range describes natural occurrence, not the origin of this seed lot or every location where a plant can be grown.
Alaska and Hawaii are shown as insets. State-level range does not mean a plant occurs throughout every part of that state.
Urban Farmer
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