Leucobryum Glaucum (Pillow Moss)

Cushion Moss/ Pillow Moss/Pincushion Moss

Leucobryum Glaucum

The green mossy mounds of Leucobryum glaucum are easily recognisable thanks to its many appropriate cushion-based names. It’s anacrocarpous moss, meaning it doesn’t branch out and grows in very compact ‘clumps’. The mounds can naturally grow up to 20 inches tall in the wild, but will generally stay quite compact in a terrarium environment. They’re a wonderful accent plant in a terrarium, providing a unique texture and shape.

At a Glance

  • Low - high indirect light
  • 65-80°F (18-26°C)
  • Regular, even moisture
  • 1-15 inches
  • Medium - high humidity (50-90%)

Where to Buy Cushion Moss

We only recommend reputable terrarium plant retailers, so depending on where you’re visiting from, please follow the corresponding link below.

Terrarium Plant Guide

Leucobryum Glaucum Care & Growth

Lighting

Cushion Moss requires a bit more sunlight to thrive than other terrarium mosses. Though it will still grow well enough in a low-light terrarium environment and should be kept out of direct sunlight.

Watering

This moss thrives in a moisture-rich environment but can go without for short periods. Keep it consistently moist for best growth conditions.

Substrate

Leucobryum glaucum grows naturally in a variety of conditions from arid soils to wetlands, so it’ll likely do fine on a variety of terrarium substrates too.

Temperature & Humidity

Leucobryum glaucum is known to grow in dryer, arid conditions, but it will do better in a high humidity terrarium environment.

Growth

Cushion Moss grows at a fairly slow rate, but it also tends to grow longer and bushier, rather than wider or taller. So, you don’t need to worry about your little fluff ball becoming one of those outdoor giants. But it might need pruning occasionally.

Propagation

Cushion Moss won’t propagate through division like carpeting mosses will. New plants form at the edges of each tuft, which then fall off and form new cushion colonies.

Varieties & Similar Plants

Cushion Moss refers to any of the Leucobryum genus that form ‘clumps’. This includes Leucobryum juniperoideum which typically forms much smaller clumps with much shorter leaves.

Common Problems

These types of moss retain water incredibly well. So (even though it likes constant moisture) it can be easily overwatered if you’re pouring rather than misting.

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