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White Cornflower Seeds – Centaurea cyanus – Pure White Fringed Petals for Cut Flowers & Pollinator Gardens.
🌸 Crisp Pure White Beauty for Your Garden
This White Cornflower (Centaurea cyanus) offers a stunning, elegant display of pure white flowers with distinctive, fringed or ragged petals and a prominent, textured, fluffy white center. The flowers are long-lasting and add a crisp, elegant touch to floral arrangements. They also dry beautifully for winter decor. This easy-to-grow annual blooms from late spring through summer and is a magnet for bees and butterflies, making it an essential plant for any pollinator garden. It is also deer-resistant and adds a crisp, beautiful touch to any garden.
🌱How to Plant & Grow
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Light Requirements: Full sun (6+ hours of direct sun per day). Tolerates light shade but will flower less intensely.
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Soil Type: Well-drained, average to fertile soil. Tolerates poor soil but performs best with moderate fertility.
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Germination Time: 7–14 days at 65–70°F (18–21°C). Darkness aids germination.
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Days to Maturity: 60–80 days from seed to flower.
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Mature Height: 12–24 inches (1–2 feet). Spread: 12–18 inches.
📏Spacing & Seeding Instructions
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Plant Spacing: Space plants 12 to 15 inches apart for full growth and good air circulation.
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Seeding Density (Per Square Foot): For mass planting, sow 6–8 seeds per square foot.
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Sowing Depth: ¼ inch (0.6 cm) deep. Cover seeds lightly with soil.
📅 Growing Calendar
|
Stage |
Northern States (3–5) |
Mid-Atlantic (6–7) |
Southern States (8–10) |
|
Start Indoors |
Late March – Early April |
Early – Mid March |
Late February – Early March |
|
Transplant Outdoors |
Late April – Early May |
Early – Mid April |
Late March – Early April |
|
Direct Sow (after frost) |
Late May – Mid June |
Mid May – Early June |
Early – Mid April |
|
Direct Sow (fall) |
Mid – Late September |
Late September – Early October |
Late October – Early November |
Important Note: Cornflower is a cool-season to warm-season annual. It blooms best in spring and early summer. In mild climates (Zones 8–10), it can be sown in fall for winter and early spring blooms. Seeds require darkness to germinate.
🧑🌾 Step-by-Step Planting Instructions
Start Indoors (Recommended for all zones):
- Fill seed trays with moist, well-draining seed-starting mix.
- Sow seeds ¼ inch deep. Cover lightly with soil. (Seeds germinate best in darkness.)
- Place the tray in a warm area (65–70°F). Keep soil moist.
- Seedlings emerge in 7–14 days. Move to a bright location.
- After 4–6 weeks, harden off seedlings over 5–7 days before transplanting outdoors.
Direct Sow in Early Spring (Recommended for all zones):
- As soon as the soil is workable in early spring (typically March–May, depending on your zone), prepare a well-drained bed in full sun.
- Sow seeds ¼ inch deep, spacing seeds 2–3 inches apart in rows.
- Water gently to keep soil moist until germination (7–14 days).
- After 3–4 weeks, thin seedlings to 12–15 inches apart.
Fall Direct Sow (Zones 8–10 only):
- In late fall (October–November), prepare a well-drained bed in full sun.
- Sow seeds ¼ inch deep, spacing seeds 2–3 inches apart.
- Water once. Let the seeds overwinter in the ground.
- Seeds will germinate in early spring (March–April). Thin seedlings to 12–15 inches apart after 4–6 weeks.
Ongoing Care:
- Watering: Water regularly until established. Once mature, water only during prolonged dry spells. The plant is moderately drought-tolerant.
- Fertilizing: Apply a balanced, slow-release fertilizer at planting time. Do not over-fertilize (can cause excessive leaf growth and fewer flowers).
- Deadheading: Remove spent flowers to encourage a longer bloom period. Regular deadheading will also prevent self-sowing.
- Overwintering: In zones 8–10, fall-sown plants will bloom in early spring. In colder zones, the plant is treated as an annual and will die back after the first frost.
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This Deep Violet Cornflower (Centaurea cyanus) offers a stunning, rich display of deep violet-purple to magenta flowers with distinctive, fringed or ragged outer petals and a prominent, textured center. The flowers are long-lasting and add a vibrant, rich touch to floral arrangements. They also dry beautifully for winter decor. This easy-to-grow annual blooms from late spring through summer and is a magnet for bees and butterflies, making it an essential plant for any pollinator garden. It is also deer-resistant and adds a rich, beautiful touch to any garden.
Ⅰ.Order Cancellation
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Cancellation Deadline: If you need to cancel your order after successfully placing it, you must send us an email request within 24 hours of placing the order. Requests received after this period will not be processed.
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Application Method: Please send your order cancellation request to our official customer service email (support@zestseeds.com). The email subject must state “Order Cancellation Request + Order Number.” The email body should include your name, contact information, order number, and the reason for cancellation to help us verify and process your request quickly.
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Refund Information: Once your cancellation request is approved, we will process your refund within 1-3 business days. The refund amount will be fully returned to your payment account. The specific time for the funds to arrive depends on the payment platform and bank processing times, so please keep an eye on your account activity.
Ⅱ.Preparation Time
After you successfully place your order, we will complete preparation and warehouse review within 1-3 business days. To ensure the quality of the seeds, we conduct strict packaging inspections on each batch of seeds to ensure they are dry and undamaged before handing them over to our logistics partners for shipment.
Note: If your order contains multiple types of seeds or if there are holidays or peak order periods, the preparation time may be extended by 1-2 business days. We will inform you in advance on the order page or via email.
Ⅲ.Logistics Shipping Times
| Region | Estimated Transit Time |
| United States | 7-12 Business Days |
| Canada | 8-13 Business Days |
Ⅳ.Customer Service Contact Information
If you have any questions regarding shipping-related matters, please contact us through the following methods:
- Email: support@zestseeds.com
- Working Hours: Monday to Friday, 9:00 AM - 6:00 PM
The final interpretation of this shipping policy belongs to Zestseeds. If there are any adjustments, we will announce them in advance on our website. Thank you for your understanding and support, and happy planting!
