Irish Moss Seeds - Flower Plant

Irish moss, botanically known as Sagina subulata, is a low-growing, evergreen perennial valued for its dense, carpet-like growth. It forms soft, moss-like mats of fine foliage and produces small white flowers during the growing season. This plant is well suited to cool and temperate climates and performs best in well-drained soil with consistent moisture. Irish moss is commonly used for ground cover, rock gardens, pathways, and between stepping stones, where it spreads gradually to fill spaces. Seeds establish under suitable conditions and require light and moisture for germination.

Features

• Low-growing perennial with dense, carpet-forming habit
• Produces small white flowers during the season
• Suitable for ground cover, rock gardens, and pathways
• Prefers cool to temperate climates
• Performs well in moist, well-drained soils

Specifications

• Scientific name: Sagina subulata
• Common name (US): Irish Moss
• Seed type / variety: Green carpet variety
• Growth habit: Low-growing, mat-forming perennial
• USDA zones: 4-8
• Planting season: Spring or fall
• Growing season: Spring to summer
• Sowing Season:
  • Spring: March to May
  • Fall: September to October
• Germination time and conditions: 2-3 weeks at 15-20°C; surface sow, light required
• Sunlight requirements: Full sun to partial shade
• Soil requirements: Well-drained, moderately fertile soil
• Watering needs: Moderate, consistent moisture
• Mature plant size: 2-5 cm height, spreading habit
• Plant spacing: 10-20 cm between plants