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The magic of moss

Learn to love this ancient plant, which has survived climate change throughout the ages, and dares to thrive where other plants die. Expert growers Moss Clerks share their top five mosses to love

Moss is taking over, but after many years of being bemoaned for its invasive spread through our lawns, it’s time to celebrate this underrated plant. Not only does it make a natural, green softener for hard landscaping edges, but it can also be used as a top dressing for planters and is perfect for using in terrariums. Better still, you can grow and collect it in your own garden.

You should never collect moss from the wild as all wild plants are protected under the Wildlife and Countryside Act (1981). Mosses play a valuable role in the biodiversity of our landscape and should only be bought from sustainably farmed sources. 

Not so much groundcover as groundhugger

Robert B Shaw
 Ancient plants

The official term for the plant group including mosses, liverworts and hornworts is bryophyte and there are said to be around 1100 species of bryophyte in Britain and Ireland. They are believed to have evolved from ancestral green algae and are thought to include the earliest lineages of plants. 

Moss clinging to ancient boulders and trees
The intricate detail of moss begs admiration
There are more than 20,000 species of moss worldwide, ranging in size from microscopic to over a metre. Their beauty lies in their colouring and their intricate detail, which begs to be admired up close. Some seem to glow with a mystical luminescence, while others resemble underwater seaweed or miniature forests. 

Old stone walls covered in moss in the Woodland at RHS Garden Bridgewater

RHS Chief Horticulturist Guy Barter says, “Moss has no roots and cannot compete with plants, and in fact is a useful groundcover, preventing weed seed germination, as well as boosting biodiversity. Moss is also fine to add to your home composting.”  

Moss takeover

Moss displayed in glass bottles, by Moss Clerks at RHS Urban Show 2024
At the RHS Urban Show in 2024, Moss Clerks caused a stir with their magical, moss-filled installation, which highlighted carbon processing, the cycle of life, and the important role played by moss. All the mosses they sell are either grown by them, or collected from certified timber areas.

Moss and the life cycle, by Marcia Ruta and Claire Page of Moss Clerks

Take five 

Moss Clerks give us their top five mosses to grow:

1. Carpet moss (Hypnum cupressiforme)

Because of its versatility, carpet moss can grow on a north facing or a south facing wall, on rooftops, in woodland, in between paving stones, and as a lawn.

2. Glittering wood moss (Hylocomium spendens)

The colour of glittering wood moss goes from dark green with red stems, to a flame orange with yellow tinges and red stem. It can grow in the shade and in the sun.  

Haircap moss

3. Haircap moss (Polytrichum strictum)

Haircap mosses have the most developed rhizoid system, a primitive root system through which they take up to 70 per cent of their nutrients, unlike other mosses which take them from the surrounding environment. Haircaps can withstand full sun if their rhizoids are deep in moist, clay soil.  

4. Broom fork moss or woodland cushion moss (Dicranum scoparium)

This lovely, woodland cushion moss makes you happy just looking at it. It’s great for moss lawns alongside carpet mosses, and adds a lovely contrast, with its bright green colour.  

5. Woolly fringe moss (Racomitrium lanuginosum)

Woolly fringe is a moss often seen growing in Iceland, where it can remain dormant for around 17 years. When dry, it looks white, like Santa’s beard, as it grows in massive tufts. 

Moss Magic at RHS Hampton Court

As a love of moss swept across the RHS Shows, it also featured at RHS Hampton Court Palace Garden Festival in 2024, where the Moss Magic Garden, designed by Bea Tann, brought the charm of a fairy woodland to a small urban space. 

Moss Magic Garden design for RHS Hampton Court Palace Garden Festival 2024

Top of the moss at RHS Chelsea Flower Show

There was also plenty of moss on show at the RHS Chelsea Flower Show in 2024, with forest floors, woodland glades and shady courtyards all making the most of the green attributes of these fascinating plants. 

Moss was used to soften the hard surfaces of The Ecotherapy Garden, designed by Tom Bannister
Nobody does moss like Kazuyuki Ishihara, seen here in a tucked away alley behind the garden
In the The National Autistic Society Garden, designed by Sophie Parmenter and Dido Milne, a shady dell at the rear of the garden was home to a range of mosses, clinging to stones, filling crevices and smoothing over sharp edges like a soft blanket. The smell was intense, drawing you in with that sumptuous earthy scent. It felt old, and that’s a good trick to use at home, giving new surfaces an aged patina by creating the right conditions for plants such as moss to grow – which generally means moist but well-drained, and they do love a slope.

Moss smoothes out the hard edges and creates a green blanket in The National Autistic Society Garden at RHS Chelsea Flower Show

Using moss in landscaping

Moss can be very useful to create that instant lived-in look. Nothing says ancient like a sprinkling of soft green moss, which can be tucked into crevices, spread onto dampened boulders, or used to blend edges.

The trick is make it look natural, such as on this moss-covered saddle quern at Attadale Gardens, Wester Ross
Moss squeezed into the gaps in paving give it an instant lived-in look

Craft projects

If you don’t like the moss in your lawn you could collect it yourself and use in craft projects. As well as being the perfect topping for planters and terrariums, moss is often used as a filler for wreaths, as it can hold moisture. You could even try creating a little bit of fairy-magic in your garden, like with this pretty birdcage, filled with moss from around the garden.

Use moss as a moist base for making all-year-round wreaths
Get those creative juices flowing, using moss in a pretty vessel such as an ornate birdcage, here with ivy

Still not convinced?

If you really don’t want moss growing in your lawn, the best advice is to scarify, to remove the moss, and then reseed bare patches with grass seed, but consider ways to reuse the moss you collect.

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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.