Irish Moss
- Scientific Name: Sagina subulata
- Garden: Lawn Alternatives Garden
- Plant Type: Ground Cover
- Evergreen/Deciduous: Evergreen
- Sun/Shade Exposure: Full Sun to Part Shade
- Moisture Requirements: Moist, well-drained
Plant Information
Soil: well-drained
Water: average to minimal once established.
Height: 4–12″ tall. More sun exposure results in shorter plants.
Spread: Quickly, 12–24″ in a year.
Hardiness/Zones: 4–8.
Despite their name and appearance Irish and Scotch moss are not true mosses. They are actually creeping, flowering perennials related to Dianthus. Irish moss is a rich emerald green. Scotch moss is a vibrant chartreuse. Tiny white flowers through summer. Both are evergreen with minor browning in winter. Scotch and Irish moss can handle moderate foot traffic, which makes them ideal for paths, patios and moderately used lawns.