Scotch moss (Sagina subulata "Aurea") is an easy-to-grow groundcover that forms a bright greenish-yellow carpet measuring no more than 1 inch in height. From late spring until midsummer, the plant is covered with tiny white blooms. Scotch moss loses its vitality in hot, humid summer weather, but rebounds quickly in autumn. Use Scotch moss as a substitute for a traditional lawn, or place the plant between pavers. Also known as Irish moss, Scotch moss is suitable for planting in U.S. Department of Agriculture growing zones 3 through 9.
Water Scotch moss regularly to keep the moss lightly moist but not waterlogged. Scotch moss likes consistent moisture. It doesn't do well in soil that is either bone dry or soggy.
Feed Scotch moss in spring, using a general-purpose water-soluble fertilizer. Mix a diluted fertilizer solution according to the directions on the label. Repeat after blooming stops in midsummer. Alternatively, use a time-release fertilizer according to label recommendations. Water after applying fertilizer.
Divide Scotch moss if it becomes too large. To divide the plant, break off small pieces of moss. Replant the moss directly in the garden to fill empty spaces. Alternatively, plant the pieces in a seed tray filled with regular potting soil. Allow the plant to grow and expand, and then transfer the moss to a semi-shady spot in the garden.
Check the plant regularly for slugs. Keep the area around the moss free of leaves, plant debris and other hiding places. If the slug infestation is serious, apply a commercial pellet or liquid slug bait. Use the bait strictly according to label directions. Slug traps and less toxic slug baits are also available.
Things You Will Need
- General-purpose water-soluble fertilizer or time-release fertilizer
- Seed tray
- Potting soil
- Slug bait
- Whidbey News-Times: Growing Concerns: Gardener Can Patch Bare Spots in Irish Moss
- Jeepers Creepers: Scotch Moss
- The New Sunset Western Garden Book; Kathleen Norris Brenzel