Armeria maritima (Sea Thrift)

Seed Treatment

Soak seeds in room-temperature water for 6–12 hours.
Cold stratification:
 – Mix seeds with moist sand or moist paper towel
 – Place in a sealed plastic bag and refrigerate for 2–4 weeks at 1–4 °C (33–39 °F)
 – If seedlings sprout during stratification, remove them from the bag and plant immediately
• The paper towel method works well during cold stratification—just keep it moist, not soggy.

Best Time to Sow
Indoors: Start seeds 6–8 weeks before the last frost
Outdoors: Direct sow in spring after the last frost or in early autumn for natural stratification

Optimum Temperature for Germination
• 18–21 °C (64–70 °F)

Germination Time
• 14-35 days

Sowing Instructions
Surface sow: press seeds gently into moist seed-starting mix — do not cover
• Maintain consistent moisture during germination; do not let soil dry out
• Use a humidity dome or clear plastic cover to retain moisture, with ventilation

Light Requirements
• Seeds require light to germinate
• After germination, grow in full sun for compact, healthy plants

Post-Germination Care
• Thin or transplant seedlings when they develop 2–3 true leaves
• Harden off indoor seedlings before transplanting outdoors
• Space 20–25 cm (8–10 in) apart in well-drained, sandy soil

Growing Tips
• Drought-tolerant and salt-tolerant once established — perfect for coastal or rock gardens
• Avoid overwatering — roots dislike soggy soil
• Remove spent flower heads to encourage continuous blooming
• Low-maintenance perennial that forms tidy mounds with pink or lavender flowers

Note: Armeria maritima is slow to establish but long-lived and excellent for borders, edges, or gravel gardens. Patience during germination pays off with stunning blooms!