Calliergonaceae
Calliergon cordifolium
Calliergon cordifolium
Zones 5–9Sun Partial SunWater ModerateCare Moderate
Native Plants · Moss · Aquatic · Bog · Wetland · Semi-Aquatic · Paludarium · Shade · Pond · Bryophyte · Cool-Growing
Pet-safe
Currently out of stock everywhereStock updated 9/6/2026
Heart-leaved calliergon moss is an aquatic to semi-aquatic moss that requires permanently wet or waterlogged conditions to thrive. It prefers cool, shaded to partially lit environments and is well suited to bog gardens, pond margins, or paludariums. Avoid letting it dry out, as desiccation is quickly fatal to this moisture-dependent species.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Maintain standing water or keep substrate permanently saturated · Keep consistently wet or submerged
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- 0°F to 90°F
- Cycle
- Perennial
- Propagation
- Seed, Cutting
Hardiness
USDA 5a-9b
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Form & growth
Mature size and habit
- Mature height
- 2 ft – 5 ft
- Spread
- 3 ft
- Spacing
- 6 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
Sources: trefle
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