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Pincushion Moss

Leucobryum glaucum

Also listed as Bryum glaucum, Dicranodon glaucum

Also known as White Pincushion Moss, White Cushion Moss, Large White Moss

groundcoverπŸŒ₯️ full shadeπŸ’§πŸ’§πŸ’§ high water❄ Hardy: Zone 3a – Zone 9b

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Pincushion moss is a delicate, cushion-forming moss prized for its soft, silvery-green appearance in shaded woodland gardens. It thrives in consistently moist conditions and requires high humidity.

Why grow it

Leucobryum glaucum forms dense, uniform cushions that provide fine-textured groundcover in shaded woodland settings where many other plants struggle. Compared to other cushion mosses, it maintains its silvery-green color in low-light conditions and establishes readily on acidic soils with consistent moisture, making it useful for stabilizing bare patches under tree canopy.

Watch out for

This moss loses its attractive appearance quickly if allowed to dry out, so it requires reliable moisture availability year-round rather than occasional watering. It may thin or brown if air circulation becomes stagnant or if the surrounding soil becomes compacted, which can impede water infiltration and create conditions favorable to algae growth.

Overview

Form
Mounding
Growth Rate
slow
Size
0.5–1.5β€² tall Γ— 1–3β€² wide
Dormancy
evergreen
Family
Leucobryaceae
Erosion control

Native to the United States

Native Range

Temperate regions worldwide

Native to: New York

Seasonality

Season of Interest

SpringSummerFallWinter

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Companion Planting

Plants well with