North America Native Plant

Orthothecium Moss

Botanical name: Orthothecium chryseum

USDA symbol: ORCH2

Habit: nonvascular

Native status: Native to North America  

Orthothecium Moss: A Golden Treasure in Your Garden’s Natural Carpet If you’ve ever wandered through a cool, shaded forest and noticed tiny golden-green cushions decorating rocks and fallen logs, you might have encountered orthothecium moss (Orthothecium chryseum). This charming little bryophyte is one of nature’s quiet workers, creating miniature landscapes ...

Orthothecium Moss: A Golden Treasure in Your Garden’s Natural Carpet

If you’ve ever wandered through a cool, shaded forest and noticed tiny golden-green cushions decorating rocks and fallen logs, you might have encountered orthothecium moss (Orthothecium chryseum). This charming little bryophyte is one of nature’s quiet workers, creating miniature landscapes that add texture and year-round interest to gardens across North America.

What Exactly Is Orthothecium Moss?

Orthothecium moss belongs to the fascinating world of bryophytes – those ancient, non-flowering plants that include mosses, liverworts, and hornworts. Unlike the flowering plants we typically think of when planning our gardens, mosses like Orthothecium chryseum are herbaceous pioneers that prefer to attach themselves to solid surfaces like rocks, tree bark, or decaying wood rather than rooting in soil.

This particular moss species is native to North America, making it a wonderful addition to naturalistic gardens that celebrate local ecosystems. You’ll find it naturally occurring across northern and western regions of the continent, thriving in the cool, moist conditions of boreal and montane environments.

Spotting Orthothecium Moss in the Wild

Identifying orthothecium moss is like discovering tiny golden feathers scattered across the landscape. Here’s what to look for:

  • Small, dense cushions or mats with a distinctive golden-green color
  • Feather-like branching patterns that create delicate, intricate textures
  • Preference for growing on rocks, fallen logs, and tree bark rather than soil
  • Thrives in shaded, cool, and consistently moist environments

Is Orthothecium Moss Beneficial for Your Garden?

While orthothecium moss won’t attract pollinators like flowering plants (since mosses don’t produce flowers), it offers several unique benefits to garden ecosystems:

  • Natural ground cover: Creates living carpets that suppress weeds in shaded areas
  • Moisture retention: Helps maintain soil moisture and prevents erosion
  • Wildlife habitat: Provides shelter for tiny invertebrates and microorganisms
  • Year-round interest: Maintains its color and texture throughout the seasons
  • Low maintenance: Once established, requires virtually no care

Where Does Orthothecium Moss Fit in Your Garden?

This moss is perfectly suited for:

  • Woodland gardens: Adds authentic forest floor texture
  • Rock gardens: Softens hard edges and creates natural transitions
  • Shade gardens: Provides ground cover where grass struggles
  • Naturalistic landscapes: Supports native ecosystem restoration

Orthothecium moss thrives in USDA hardiness zones 2-7, making it incredibly cold-hardy and perfect for northern gardeners looking for reliable ground cover.

Encouraging Orthothecium Moss in Your Space

Unlike traditional plants, you can’t simply plant orthothecium moss from seeds or transplants. Instead, think of yourself as creating the right conditions for this moss to find and colonize your garden naturally:

  • Maintain cool, consistently moist conditions in shaded areas
  • Provide suitable surfaces like rocks, logs, or bark
  • Avoid using fertilizers or chemicals that might discourage moss growth
  • Be patient – mosses establish slowly but create long-lasting beauty

If you’re lucky enough to discover orthothecium moss already growing in your garden, simply appreciate it and avoid disturbing the areas where it thrives. This little golden treasure is nature’s way of adding subtle beauty to the quiet corners of your outdoor space, creating a living connection to the ancient plant world that has been decorating our planet for millions of years.

Orthothecium Moss

Classification

Group

Moss

Kingdom

Plantae - Plants

Subkingdom
Superdivision
Division

Bryophyta - Mosses

Subdivision

Musci

Class

Bryopsida - True mosses

Subclass

Bryidae

Order

Hypnales

Family

Hypnaceae Schimp.

Genus

Orthothecium Schimp. - orthothecium moss

Species

Orthothecium chryseum (Schwägr.) Schimp. - orthothecium moss

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA