Club Moss vs Old Man's Beard Plant Comparison
Compare these two plants side by side — care needs, key differences, and which is right for your home.
Club Moss
Lycopodium clavatum
Lycopodium clavatum, commonly known as Club Moss, is a creeping, evergreen perennial plant that resembles a moss but is actually a vascular plant. It spreads via rhizomes, forming extensive mats in acidic, well-drained soils. The plant features trailing stems with small, scale-like leaves arranged spirally around the stem. It produces erect strobili (spore-bearing cones) at the tips of its branches, giving it a distinctive club-like appearance. While historically used medicinally and for other purposes, it's primarily an outdoor plant. People may attempt to grow it indoors for its unique texture and appearance, but success is limited.
Old Man's Beard
Usnea spp.
Old Man's Beard is a lichen, not a plant. It's a symbiotic relationship between a fungus and an alga or cyanobacterium. It appears as stringy, hair-like strands hanging from trees and shrubs. Its color ranges from pale green to grayish-green. It thrives in humid environments with clean air. People collect it for its purported medicinal properties and decorative uses. It is primarily an outdoor organism and cannot be successfully grown indoors.
Quick Plant Comparison
| Feature | Club Moss | Old Man's Beard |
|---|---|---|
| Light | Partial shade to full shade outdoors. Indoors, bright indirect light is required, but difficult to achieve. | Bright, indirect light outdoors. Full sun can scorch it in dry conditions. |
| Watering | Outdoors: Depends on rainfall. Indoors: Every 2-3 days, adjusting based on humidity and light. | Dependent on environmental humidity; mist when dry |
| Humidity | 60-80% | 60-90% |
| Temperature | 10-20°C | 5-25°C |
| Care Level | Expert | Expert |
| Growth Rate | Moderate To Fast, Aggressive Spreader Via Rhizomes. | Slow |
| Max Height | Outdoors: 5-15 cm. Indoors: Difficult to maintain, but potentially up to 10 cm. | Variable, up to several feet long depending on the species and environment. |
| Pet Safety | ❌ Toxic To Pets | ✅ Safe |
| Soil | Acidic, well-drained soil rich in organic matter. A mix of peat moss, perlite, and sand is suitable. | Does not grow in soil. Attaches to tree bark or other surfaces. |
| Beginner Friendly | ❌ No | ❌ No |
| Weekly Maintenance | 15-30 minutes weekly | 5 minutes weekly (for misting if needed). |
🔬 Botanical Information — Comparing These Plants
Club Moss
| Scientific Name | Lycopodium clavatum |
|---|---|
| Family | Lycopodiaceae |
| Native To | Cosmopolitan; found in temperate and boreal regions worldwide |
| Also Known As | Club Moss, Staghorn Clubmoss, Running Clubmoss, Ground Pine |
| Leaves | Small, scale-like leaves arranged spirally around the stem. Evergreen and typically bright green. |
| Flowers | Does not flower in the traditional sense. Reproduces via spores produced in strobili (cones). Rarely seen indoors. |
Old Man's Beard
| Scientific Name | Usnea spp. |
|---|---|
| Family | Parmeliaceae |
| Native To | Worldwide, various species have different distributions |
| Also Known As | Old Man's Beard, Tree Moss, Beard Lichen |
| Leaves | Does not have leaves. Consists of thread-like or strap-shaped structures that are pale green to grayish-green in color. |
| Flowers | Does not flower. |
📏 Size & Growth — Plant Comparison
Club Moss
Old Man's Beard
🌱 Propagation — Comparing Plant Growth
Club Moss
Methods: Division, Spores
Difficulty: Moderate To Difficult
Tips: Division is the easiest method. Carefully separate sections of the rhizome and plant them in a suitable soil mix. Spore propagation is more challenging and requires specific conditions.
Old Man's Beard
Methods: Fragmentation (pieces breaking off and attaching to new surfaces).
Difficulty: Moderate
Tips: Ensure high humidity and a suitable substrate (tree bark). Success is not guaranteed.
✨ Benefits & Features — Comparing Plant Value
Club Moss
Club Moss is a living fossil, representing an ancient lineage of vascular plants that predate flowering plants. Its unique spore-bearing cones (strobili) and creeping growth habit distinguish it from true mosses.
- ✓ Unique aesthetic appeal
- ✓ Can be used as a groundcover in suitable outdoor environments
- ✓ Offers a connection to ancient plant lineages
- ✓ Provides a textural element to plant collections
- ✓ May have historical or cultural significance
- ⚠️ Toxic to pets
Old Man's Beard
It is a lichen, not a plant, representing a symbiotic relationship between a fungus and an alga. Its presence indicates good air quality, making it a valuable environmental indicator.
- ✓ Air quality indication
- ✓ Aesthetic appeal in natural settings
- ✓ Potential medicinal properties
- ✓ Educational value
- ✓ Supports biodiversity
- 🐾 Pet Safe
📅 Maintenance Schedule — Plant Care Comparison
Club Moss
Old Man's Beard
🌞 Light Requirements
Club Moss
Partial shade to full shade outdoors. Indoors, bright indirect light is required, but difficult to achieve.
Low light tolerant: ❌ No
Old Man's Beard
Bright, indirect light outdoors. Full sun can scorch it in dry conditions.
Low light tolerant: ❌ No
💧 Watering Needs
Club Moss
Keep the soil consistently moist but not waterlogged. Overwatering can lead to root rot, while underwatering will cause the foliage to dry out and turn brown. Check soil moisture regularly.
Old Man's Beard
Requires high humidity and moisture. In dry climates, misting may be necessary, but it primarily obtains moisture from the air.
🌡️ Temperature & Humidity
Club Moss
Temperature: 10-20°C
Humidity: 60-80%
Old Man's Beard
Temperature: 5-25°C
Humidity: 60-90%
🤔 Which Plant Is Right For You?
Club Moss
Lycopodium clavatumExperienced plant enthusiasts who can provide the specific environmental conditions required for its survival.
✅ Choose This Plant If...
- You appreciate unique and unusual plants.
- You are willing to provide high humidity and consistent moisture.
- You have experience with challenging plants.
- You are looking for a groundcover for a shady, acidic garden area.
- You are fascinated by the evolutionary history of vascular plants.
❌ Skip This Plant If...
- You are a beginner plant owner.
- You cannot provide high humidity.
- You have pets that may ingest the plant.
Old Man's Beard
Usnea spp.Outdoor environments with high humidity and clean air.
✅ Choose This Plant If...
- You live in a naturally humid environment with clean air.
- You want to study lichens and their role in the ecosystem.
- You are interested in traditional medicine and the potential uses of Usnea.
- You have a shaded outdoor area where you can provide high humidity.
- You want a natural air quality indicator.
❌ Skip This Plant If...
- You live in a dry climate.
- You have poor air quality.
- You want an easy-to-care-for houseplant.
🎯 Quick Verdict
⚡ Key Differences Between These Plants
Club Moss has moderate to fast, aggressive spreader via rhizomes. growth, while Old Man's Beard grows slow.
💡 Pro Tips For Comparing These Plants
Club Moss Care Tips
Club Moss is primarily an outdoor plant that requires specific conditions to thrive indoors. High humidity, consistent moisture, and acidic soil are essential. It's prone to root rot and drying out, making it a challenging houseplant. Regular division is needed to manage its spreading growth.
- Use rainwater or distilled water to avoid mineral buildup in the soil.
- Provide good air circulation to prevent fungal diseases.
- Monitor humidity levels closely and use a humidifier if necessary.
- Repot in spring to refresh the soil and divide the plant if needed.
- Avoid direct sunlight, which can scorch the foliage.
Old Man's Beard Care Tips
Old Man's Beard is an outdoor lichen that is extremely difficult to cultivate indoors. It requires very high humidity, clean air, and specific lighting conditions. It is not a suitable houseplant and will likely die indoors.
- Provide high humidity through regular misting or a humidifier.
- Ensure good air circulation to prevent fungal growth.
- Protect from direct sunlight, especially during the hottest part of the day.
- Monitor for signs of drying out and adjust humidity accordingly.
- Avoid using tap water for misting, as it can contain minerals that harm the lichen.
⚠️ Common Problems & Solutions — Plant Care Comparison
Club Moss
Old Man's Beard
❓ Frequently Asked Questions — Comparing These Plants
Club Moss
What are the light requirements for Club Moss?
Club Mosses prefer bright, indirect light. Direct sunlight can scorch their delicate foliage. An east-facing window is ideal, or a north-facing window if the light is strong enough. Avoid south-facing windows unless you can diffuse the light with a sheer curtain. Insufficient light can lead to leggy growth and a loss of color. Rotate your plant periodically to ensure even light exposure on all sides. If natural light is insufficient, supplement with a grow light. The ideal light level is similar to what you would find under the canopy of a forest. Monitor the plant for signs of too much or too little light and adjust accordingly.
How do I care for Club Moss?
Club Mosses thrive in bright, indirect light, mimicking their natural forest floor habitat. Water regularly, keeping the soil consistently moist but not soggy. High humidity is crucial; aim for 60-80%. Use a well-draining, acidic potting mix such as peat moss or sphagnum moss. Fertilize sparingly during the growing season (spring and summer) with a diluted liquid fertilizer. Repot only when necessary, typically every 1-2 years, into a slightly larger pot. Prune any dead or yellowing fronds to encourage healthy growth. Protect from drafts and extreme temperature fluctuations. Ensure good air circulation to prevent fungal diseases. Regularly check for pests like spider mites or mealybugs. Provide consistent care for optimal growth and a vibrant display.
How do I propagate Club Moss?
Club Mosses can be propagated by division or by spores. Division is the easiest method. During repotting, carefully separate the plant into smaller sections, ensuring each section has roots. Pot each section into its own container with well-draining potting mix. To propagate by spores, collect spores from mature sporophytes. Sow the spores on a moist, sterile substrate in a humid environment. Spore propagation is a slow process and requires patience. Keep the substrate consistently moist and provide bright, indirect light. It can take several months for new plants to develop from spores. Ensure proper sanitation to prevent fungal growth.
Old Man's Beard
What are the light requirements for Old Man's Beard?
Old Man’s Beard thrives in bright, indirect light. Direct sunlight can scorch its delicate foliage, causing it to dry out and turn brown. The ideal location is near an east- or west-facing window where it receives filtered sunlight. If you’re using artificial light, provide it with several hours of fluorescent or LED grow lights daily.
How do I care for Old Man's Beard?
Caring for Old Man’s Beard is relatively simple, but understanding its needs is crucial for its health and longevity. Place it in a location with bright, indirect light. Avoid direct sunlight, which can scorch the delicate foliage. Water by misting the plant thoroughly 2-3 times a week, or soaking it in water for 15-30 minutes every 1-2 weeks. After soaking, gently shake off excess water to prevent rot.
How do I propagate Old Man's Beard?
Old Man’s Beard is primarily propagated through pups, or offsets, that grow from the main plant. Once a pup reaches about one-third the size of the mother plant, it can be carefully separated. Gently pull or cut the pup from the main strand, ensuring you don’t damage either plant.
Last updated: April 30, 2026 — Plant care data reviewed and verified by our editorial team.