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Purple Rock Cress Seeds – Aubrieta deltoidea – Low-Growing Spring Perennial for Rock Gardens & Border Edges.
🌸 A Carpet of Purple in Early Spring
Purple Rock Cress (Aubrieta deltoidea) is one of the earliest and most rewarding spring-blooming perennials. In early spring, it erupts into a dense, carpet-like display of vibrant purple-magenta flowers that completely cover the low-growing foliage. The plant forms a neat, mat-like habit that is perfect for rock gardens, border edges, or trailing over walls and slopes. It is drought-tolerant, deer-resistant, and requires very little maintenance once established. This is a must-have for any gardener looking to add early-season color to their landscape.
🌱How to Plant & Grow
- 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 sandy soil. Prefers slightly alkaline to neutral pH. Excellent drainage is critical – does not tolerate waterlogged roots.
- Germination Time: 14–21 days at 65–70°F (18–21°C). Light aids germination.
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Days to Maturity: 100–120 days from seed to flower (first year blooms, but heavier bloom in year 2+).
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Mature Height: 4–6 inches. Spread: 12–24 inches.
📏Spacing & Seeding Instructions
- Plant Spacing: Space plants 12 to 15 inches apart to allow for spreading.
- Seeding Density (Per Square Foot): For mass planting, sow 6–8 seeds per square foot.
- Sowing Depth: Surface sow. Press seeds gently into the soil but do not cover – they need light to germinate.
📅 Growing Calendar
|
Stage |
Northern States (4–5) |
Mid-Atlantic (6–7) |
Southern States (8–9) |
|
Start Indoors |
Late January – Early February |
Early – Mid January |
December – Early January |
|
Transplant Outdoors |
Early – Mid April |
Late March – Early April |
Late February – Early March |
|
Direct Sow (fall) |
Mid – Late September |
Late September – Early October |
Late October – Early November |
|
Direct Sow (fall) |
Not recommended |
Mid – Late September |
Late October – Early November |
Important Note: Aubrieta seeds benefit from cold stratification for best germination. If starting indoors, refrigerate seeds for 2–4 weeks before sowing. Fall direct sowing is the easiest method.
🧑🌾 Step-by-Step Planting Instructions
Fall Direct Sow (Easiest – Recommended for all zones):
- In late summer to early fall (September–October), prepare a well-drained bed in full sun.
- Scatter seeds on the soil surface. Press in gently. Do not cover.
- Keep soil moist until germination. The cool fall temperatures provide natural stratification.
- Seedlings will establish before winter and bloom the following spring.
- Thin seedlings to 12–15 inches apart after 4–6 weeks.
Start Indoors (With Cold Stratification):
- Stratification Step: Place seeds in a damp paper towel or mix with moist sand inside a sealed plastic bag. Place the bag in your refrigerator (not freezer) for 2–4 weeks.Check periodically to ensure the sand/towel remains moist.
- Sowing Step: After 2–4 weeks, remove seeds from the refrigerator. Fill seed trays with moist seed-starting mix. Sprinkle seeds on the soil surface. Do not cover.
- Germination Step: Place in a warm area (65–70°F) with bright light. Keep soil moist. Seeds will germinate in 14–21 days.
- Transplant Step: After 6–8 weeks, harden off seedlings over 5–7 days before transplanting outdoors after the last frost.
Direct Sow in Spring (Requires artificial stratification):
- Place seeds in a damp paper towel in a sealed plastic bag. Refrigerate for 2–4 weeks.
- In early spring (April–May), after the last frost, prepare a well-drained bed.
- Scatter seeds on the soil surface. Press in gently. Do not cover.
- Water carefully. Keep soil moist until seedlings emerge (14–21 days).
- Thin seedlings to 12–15 inches apart after 4–6 weeks.
Ongoing Care:
- Watering: Water regularly until established (first 4–6 weeks). Once mature, water only during prolonged dry spells. The plant is highly 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 after the first bloom to encourage a second, lighter flush of blooms later in the season.
- Pruning: After the main bloom period, lightly shear back the plant by 2–3 inches to maintain a tidy, compact habit.
- Dividing: Every 2–3 years, divide the plant in early spring or late summer to prevent overcrowding and maintain vigor.
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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!
