Diphasiastrum complanatum
Diphasiastrum complanatum · Lycopodiaceae
The gardener's calendar
Ideal time to plant diphasiastrum complanatum: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Evergreen, light green, flattened fan-shaped
- Plant type
- Clubmoss (pteridophyte), non-flowering
- Mature size
- 10 to 30 cm tall, spreading and branched form
- Growth rate
- Very slow
- Hardiness
- Very hardy (zone 2-3, tolerates -40 °C)
- Origin
- Northern Hemisphere (Europe, Asia, North America)
- Soil
- Acidic, humus-rich, well-drained, rich in organic matter
Care
Light Exposure
Position your flattened clubmoss in part shade or light shade. It thrives under forest canopy and dreads direct sunlight, especially in dry climates. Dappled light encourages balanced growth.
Watering
Keep the substrate consistently moist without waterlogging. Water regularly during the growing season (spring-summer), particularly through misting to recreate natural humidity. In winter, reduce watering but don't let it dry out completely.
Soil Composition
Prepare a very acidic substrate (pH 4.5-5.5), rich in sphagnum peat and decomposed organic matter. A mix with fine bark, sand, and leaf litter creates optimal conditions. Good drainage remains essential to prevent root rot.
Pruning and Maintenance
Clubmoss requires no pruning. Simply remove dead or damaged fronds. Gently clean if dust accumulates. This plant is maintained very minimally.
Fertilizing
No fertilizer is necessary if the soil is rich in humus. With extended cultivation, a light annual application of very dilute organic fertilizer (low in nitrogen) can support growth. Prefer a mulch of fallen leaves in spring.
Diseases and Pests
The flattened clubmoss is generally very resistant. Problems mainly stem from stagnant excess moisture (rot) or prolonged dryness. Avoid chemical pesticides; good air circulation and proper drainage are sufficient.
Did you know?
Clubmosses are among the oldest vascular plants on Earth, appearing over 400 million years ago. During the Carboniferous period, their giant ancestors dominated primitive forests and formed today's coal deposits. Diphasiastrum complanatum, a living fossil, reproduces through asexual or sexual spores and never produces flowers or seeds.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
Add this plant to my garden →Plants from the same family
- Spinulum annotinumSpinulum annotinum
- Club mossLycopodium clavatum
- Lycopodiella inundataLycopodiella inundata
- Fir ClubmossHuperzia selago
- Alpine clubmossDiphasiastrum alpinum
- Palhinhaea cernuaPalhinhaea cernua
Tips generated and checked by Viridia — adapt them to your local climate.