The Q&A Archives: Yellowing Browning Moss

Question: I recently planted some Irish Moss for ground cover and they are starting to turn yellow and brown in just 2-3 months of period. They were planted in areas with partial sun and I made sure they have enough water, what could be the problem of them dying? do i need to replace them as they turned yellow or will they grow back?

Answer: Sagina subulata makes a dense, compact, mosslike mass of slender leaves on slender stems. Although they look like moss, they won't grow well under the conditions that suit true mosses. Provide rich, well-draining soil, full sun to part shade, and occasional feeding with a slow-acting fertilizer. If patches are dying, the drainage may be poor, resulting in a fungal disease. You may want to dig the plants, amend the soil with organic matter to help expedite drainage and then replant. Sagina should creep slowly and fill in bare spots, but you can help matters along by cutting thin strips from the center of an established planting and replanting in a new area. The strip will fill in quickly and the division should quickly become established in the new area.

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