Keep the area moist and the moss will begin to establish itself and spread within a few weeks. Spreading moss – If you have a rock garden or other place where transplanting won't work, try spreading moss slurry on the proposed garden spot.

How quickly does moss spread?

When moss is grown properly, you will see it begin to thrive and grow on its own within six weeks. Some moss varieties can take longer to fully flourish – even up to two years.

How can you encourage moss to spread?

Encourage the native moss to grow and spread by pulling out the grass, little by little. If you have well-established mossy areas in the lawn, where grass has thinned out, simply pulling out the grass and weeds will encourage the moss to spread.