Grow a beautiful and ecologically important native wildflower with our Wild Senna seeds. This stately perennial is prized for its large, attractive compound leaves and the abundant clusters of cheerful, bright yellow flowers it produces in mid to late summer. It is an essential host plant for the caterpillars of several species of sulphur butterflies, including the Cloudless Sulphur. A tall, tough, and low-maintenance plant, Wild Senna is a perfect choice for the back of a perennial border, a meadow, or a native pollinator garden.
⭐ What you'll love
- An essential host plant for the caterpillars of sulphur butterflies.
- Produces an abundance of cheerful, bright yellow flower clusters.
- A tall, stately native plant that adds a beautiful structural element to the garden.
- A very hardy and reliable perennial that is easy to grow from seed.
🌿 Seed details
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Plant Name: Wild Senna (Senna hebecarpa)
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Seed Quantity: Approx. 20 seeds
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Type: Heirloom, Open Pollinated, Non-GMO
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Lifecycle: Perennial
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Height: 3-7 feet
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Days to Maturity: Blooms in the second year from seed.
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USDA Zone: 4-9
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Origin: American Grown
🌱 Growing instructions
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Sowing: For best results, start seeds indoors after a period of preparation.
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Scarification & Stratification: First, scarify the hard seed coat by nicking with a file or soaking in very hot (not boiling) water for 10 minutes. Then, seeds require a 1-2 week period of cold, moist stratification in the refrigerator.
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Depth: After preparation, plant seeds just below the surface of the soil.
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Light Requirement: Full Sun to Partial Shade.
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Soil: Prefers moist, well-draining soil.
✅ Our seed packets
- Professionally designed and made.
- Resealable for convenient, long-term storage.
- Eco-friendly and recyclable (contains no plastic).
- Includes full, detailed growing instructions.
- Vigorously tested to ensure the highest germination rates.
- Custom packets for weddings, baby showers, or events are available. Just message us!
🚚 Shipping
- FREE SHIPPING on all orders of $35 or more.
- Flat Rate shipping no matter how many seeds you order.
- Tracking is included with every order.
