Haircap Moss for Terrariums (Polytrichum commune)

Name: Haircap Moss for Terrariums (Polytrichum commune)
SKU: TM-HAM
Availability: InStock

Price range: $8.95 through $27.95

Live Haircap Moss (Polytrichum commune) creates a woodland and dramatic aesthetic in a terrarium due to its upright and bristly structure. It grows in dense colonies with tall tufts, mimicking a miniature coniferous forest. Haircap Moss thrives in high-humidity environments with indirect sunlight and is well suited for tropical and temperate microclimates with a balanced airflow and moisture retention.

Botanical Profile

Scientific Name: Polytrichum commune
Common Names: Haircap Moss, Common Haircap, Polytrichum Moss
Growth Form: This moss grows in dense, vertical clusters with clusters resembling a miniature pine tree forest.
Coloration: Bright to deep green when hydrated. It may darken or brown slightly when it is dry.
Texture: Coarse, fibrous, and resilient to touch.

Key Applications

Very suitable for creating vertical structure and elevation contrast in terrariums.
Well suited for high-humidity and temperate environments.
Ideal for forest-themed layouts.
Great for soil structure moisture retention.
Allows air exchange at the base level.

Size

Clear

Sizing a terrarium build?

Enter your vessel in inches in the terrarium moss calculator — it matches species to the humidity of your build, splits floor and accents the way the guide lays one out, and prices the order at live shop prices.

Keep planning: Live moss for terrariums · The terrarium guide · The haircap collection

Outdoors, haircap moss for slopes and banks is the landscaping grade — the species used for erosion control.

Handling Instructions

Shipped Live: We ship all our mosses fresh and live. You don’t need to soak the moss to rehydrate.
Storage: You can store haircap moss for 2-4 weeks in a breathable container if there is enough airflow, moisture, and shade before planting it.
Usage: Press Haircap Moss lightly into the substrate to ensure good contact and to remove air bubbles.

Ecological and Ethical Harvesting

All of our mosses, including Polytrichum commune, are hand-harvested sustainably. We never harvest more than 30% of any given colony to ensure natural regeneration to support long-term biodiversity and ecosystem health.