How to Grow Irish Moss
Sagina subulata
Your complete guide to growing Irish Moss.
When to Plant Irish Moss
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
Companion Plants for Irish Moss
✓ Good companions
Both form dense mats and can create attractive mixed groundcover patterns
Both prefer cool, moist conditions and Irish moss provides attractive groundcover beneath
Both form dense, walkable mats and can be used together in stepping stone paths
Share preference for moist, shaded areas and complement each other's textures
Similar growing requirements and Irish moss softens the base of coral bells
Both thrive in similar shade conditions and create layered woodland garden aesthetics
Creates beautiful contrast with Irish moss while sharing similar low-growing habit
Both are shade-loving groundcovers that naturalize well together in woodland settings
✗ Keep away from
Produces juglone which is toxic to many plants including sensitive groundcovers
Vigorous spreading vine that will climb over and kill Irish moss through competition
Extremely aggressive spreader that will quickly overtake and smother Irish moss