To propagate Irish moss, the most common method is to take divisions from an established plant by carefully cutting narrow strips or digging up clumps and separating them into smaller pieces, ensuring each piece has roots, then replanting them in a suitable location; you can also try propagating from seed, although this may take longer to establish fully.
Key points about propagating Irish moss:
Division is the preferred method: This is the easiest way to quickly spread Irish moss as it readily establishes from small sections of the plant.
When to divide: Spring is the ideal time to divide Irish moss.
How to divide – Cut strips: Use a sharp knife to carefully cut narrow strips from a healthy patch of Irish moss.
Separate clumps: Gently dig up a clump and break it apart into smaller pieces, making sure each piece has roots.
Planting the divisions:
Prepare the area: Ensure the new planting site has well-drained soil and receives filtered sunlight.
Plant the divisions: Gently press the divided pieces into the soil, spacing them evenly.
Watering: Keep the newly planted area moist until the Irish moss establishes.
Important considerations:
Seed propagation: While possible, growing Irish moss from seed can be challenging and may take longer to mature.
Light requirements: Irish moss thrives in partial shade, so plant it in areas that receive filtered sunlight.
Soil conditions: Irish moss prefers moist, well-drained soil.