Description
Sagina subulata, commonly known as Irish moss or Heath pearlwort, it is a low-growing, mat-forming perennial plant in the family Caryophyllaceae. It is native to Europe, but has been widely introduced and naturalized in other parts of the world, including North America. Irish moss typically grows to a height of only 5-10 cm (2-4 inches), and has small, needle-like leaves that are arranged in dense, moss-like clusters. The plant produces small, white or pink flowers in the summer, but is primarily grown for its attractive foliage. Irish moss is commonly used as a ground cover or as a filler plant in rock gardens, and is prized for its low-growing, dense habit and its ability to tolerate a wide range of growing conditions. It is often used to create a “living carpet” effect in garden design, and is particularly well-suited to growing between stepping stones or along garden paths. Irish moss prefers full sun to partial shade and well-drained soil, and can tolerate both dry and moist conditions. It is also fairly easy to care for, and typically requires little maintenance beyond occasional watering and fertilization. Overall, Irish moss is a versatile and attractive plant that can be a great addition to a variety of garden styles and design schemes. Its low-growing habit and ability to thrive in a range of growing conditions make it a popular choice for gardeners and landscapers alike.
Key Facts
- Common Name(s):Heath pearlwort
- Hardiness:Fully hardy
- How big will I get? Sagina subulata can grow to a height of 0.1m and a spread of 0.4m.
- Did You Know That:Despite its name, Irish moss is not actually a type of seaweed or moss. It is a flowering plant that grows low to the ground and forms a dense, moss-like mat?
Plant Calendar
A rough guide to how this plant will change through the year.
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Care Guide
Soil Requirements
Sagina subulata prefers moist but well-draining soil. This plant is not tolerant of alkaline soil, it requires either a neutral or acidic soil to grow.
Best Position
Sagina subulata can handle either an exposed or a sheltered position and can cope with either full sun or partial shade.
Maintenance
Sagina subulata is fairly low maintenance and doesn’t require any pruning.
Pest, Diseases and Wildlife
Sagina subulata can have problems with aphids, and it tends not to have problems with diseases.
