Heartleaf cool-moss Plant Care
Calliergon cordifolium (Hedw.) Kindb.
Updated · Sources · How we source care data
Calliergon cordifolium is a species of moss in the Calliergonaceae family, commonly known as the calliergon moss or heart-leaved spearmoss. The species is abundant in the right habitat, and grows in marshes and wet woodland, especially woodland of alder (Alnus) or willow (Salix), as well as around streams, ditches and pools.
Low to medium indirect light
At a glance
How do you care for Heartleaf cool-moss?
Heartleaf cool-moss grows best in low to medium indirect light.
What Is the Heartleaf cool-moss?
Heartleaf cool-moss (Calliergon cordifolium) belongs to the Calliergonaceae family within the Calliergon genus. Heartleaf cool-moss is also known as Heart-leaved calliergon moss.
Heartleaf cool-moss displays a low mat-forming ground cover growth habit, reaching up to tall with a spread of approximately . Heartleaf cool-moss produces small, inconspicuous flowers.
What Light Does the Heartleaf cool-moss Need?
Heartleaf cool-moss thrives in low to medium indirect light. Avoid placing Heartleaf cool-moss in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Low to medium indirect light
What Soil Mix Works Best for a Heartleaf cool-moss?
Sphagnum peat moss with perlite for moisture retention and aeration. Good drainage is essential for Heartleaf cool-moss to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Heartleaf cool-moss?
Repot every 1-2 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Heartleaf cool-moss?
Heartleaf cool-moss can be propagated through spores, division of clumps. Similar propagation techniques also apply to giant calliergon plant care, which shares the same genus.
Is the Heartleaf cool-moss Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Heartleaf cool-moss, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Heartleaf cool-moss?
Heartleaf cool-moss is susceptible to slugs, snails, aphids. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
Keep exploring plants
Heartleaf cool-moss is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Calliergon genus — compare its care with other Calliergon species on PlantoScan.
Calliergon is part of the Calliergonaceae plant family — browse all Calliergonaceae genera and species.
Heartleaf cool-moss copes with lower light than most plants — browse the full list of low-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Calliergon cordifolium (Hedw.) Kindb., family Calliergonaceae (first published in Canad. Rec. Sci. 6(2): 72 1894) — World Flora Online record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Heartleaf cool-moss, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
Identify Plants Like the
Heartleaf cool-moss Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species