Ground-cedar
dendrolycopodium dendroideum
Also known as: ["Dendrolycopodium obscurum","Lycopodium obscurum"]
Overview
A creeping, evergreen clubmoss with small, scale-like leaves and cone-like sporangia, often forming dense mats in shaded, moist forests.
Benefits & Perks
["shade tolerant","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Lycopodiophyta |
| Class: | Lycopodiopsida |
| Order: | Lycopodiales |
| Family: | Lycopodiaceae |
| Genus: | Dendrolycopodium |
| Botanical Name: | Dendrolycopodium dendroideum |
Plant Characteristics
Basic Information
- Category: Leaf Plants
- Suitable Location: shaded woodland garden or shaded indoor pot
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"0–30°C"}
- Hardiness: {"zones":"3–7"}
- Misting: every 2–3 days in dry climates, rarely required in humid environments
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, acidic soil with organic matter; peat-based mix is ideal.
Maintenance Level
- Maintenance Level: low
- Toughness Level: moderate
- Pruning Frequency: As needed, typically once or twice a year.
- Pruning Intensity: Light pruning; remove only dead or yellowing fronds.
Care Details
Ideal Sunlight Coverage:
Bright indirect light; 4–6 hours of filtered sunlight per day; adjust for intensity in summer.
Sunlight Tolerance Tips:
Acclimate gradually to brighter light; avoid direct sun to prevent scorching; place in shaded areas outdoors.
Care Requirements
Care Difficulty
easymoderate
Sunlight
partial shade to full shade
Rotate plant for even light exposure; use sheer curtains to filter intense light; avoid direct afternoon sun.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly but allow soil to dry between waterings; avoid overwatering, especially in winter.
Soil
moist, well-draining, acidic to neutral peat-based mix
pH: Acidic to slightly acidic (pH 5.0–6.5).
Ensure soil is well-aerated; avoid heavy clay soils; maintain consistent moisture.
Temperature
Prefers cool to moderate temperatures (50–70°F or 10–21°C); tolerates cooler conditions but avoid frost.
Keep away from drafty windows; maintain consistent room temperature; avoid sudden temperature fluctuations.
Fertilizing
every 4–6 weeks during growing season, none in winter
Dilute fertilizer to prevent burn; fertilize only when actively growing; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Spores or division; spores are the most common method for this species.
Step-by-Step Propagation Guide
- Collect mature spores.
- Scatter spores on sterile medium.
- Keep moist and warm.
- Wait for germination.
Best Time: Spring or early summer when the plant is actively growing.
Environment
High humidity (80–90%), warm temperatures (65–75°F or 18–24°C), and indirect light.
Medium
Moss or peat-based medium with good moisture retention.
Hormone
Not required for spore propagation.
Timeline
Spores may take several months to germinate and establish.
Tools Needed
Spore collection container, sterile medium, spray bottle, humidity dome.
Quick Tips
Use a sterile environment to prevent mold; keep medium consistently moist; be patient with germination.
Pruning & Repotting
Pruning Guide
Method
Snip individual fronds at the base with clean, sharp tools.
Pruning Plan
Minimal pruning needed; focus on removing dead or damaged fronds to maintain appearance.
Tools
Pruning shears, scissors, or a sharp knife.
Checklist
Identify dead/damaged fronds; use clean tools; remove carefully; dispose of clippings.
Repotting Guide
Best Season
Spring, before the growing season begins.
Pot Size
One size up from current pot; ensure good drainage.
Method
Gently remove plant; trim any dead roots; place in a slightly larger pot with fresh soil; water lightly.
Suggestions
Repot only when the plant becomes root-bound or every 2–3 years.
Checklist
Check root health; use fresh soil; ensure proper drainage; water sparingly after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water thoroughly; ensure drainage; adjust for season.
How to Apply Water Properly
Water at the base of the plant, ensuring even moisture distribution without saturating the soil; allow excess water to drain away.
Watering Schedule Tips
Water when the top inch of soil is dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or sand for drainage; incorporate peat moss for acidity and moisture retention.
Temperature Stress Management
Signs of Temperature Issues
Wilting, yellowing leaves, or stunted growth in extreme heat or cold.
Cold Stress
Slows growth, may cause leaf drop, and can lead to root damage if temperatures drop below 40°F (4°C).
Solution: Move to a warmer location; insulate pots; avoid cold drafts; protect from frost.
Hot Stress
Leaves may curl, turn brown, or drop; growth may slow due to excessive heat.
Solution: Provide shade; increase humidity; water more frequently but avoid waterlogging; ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Use diluted fertilizer; fertilize during growing season; avoid winter feeding.
Fertilizing Method
Use a balanced liquid fertilizer diluted to half strength; fertilize monthly during growing season (spring to early fall); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicDendrolycopodium dendroideum is not considered toxic to cats. It has no known toxic effects or physiological impacts when ingested.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Non-toxicDendrolycopodium dendroideum is not considered toxic to dogs. It has no known toxic effects or physiological impacts when ingested.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Non-toxicDendrolycopodium dendroideum is not considered toxic to humans. It has no known toxic effects or physiological impacts when ingested.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Dendrolycopodium dendroideum toxic to pets?
A: No, it is non-toxic to dogs and cats.
Q: Where does Ground-cedar typically grow?
A: It thrives in shaded, moist forest environments, often forming dense mats on forest floors.
Q: How should I care for this plant?
A: Provide partial to full shade, consistently moist soil, and avoid direct sunlight or drought conditions.
Quick Reference
| Family: | Lycopodiaceae |
| Care: | easy |
| Light: | partial shade to full shade |
| Water: | every 7–10 days during activ |
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