Bushy Clubmoss Care (Lycopodium deuterodensum)

Bushy Clubmoss

About Bushy Clubmoss

Bushy clubmoss (Lycopodium deuterodensum) is a primitive, fern-like spore plant rather than a true moss. It forms dense, trailing to upright stems covered in small, overlapping scale-like leaves, creating a soft, bushy look.

This species is native to New Zealand and parts of Australia, where it grows on forest floors, banks, and damp, shaded slopes. Its need for consistent moisture, high humidity, and good air movement makes it moderately challenging as a houseplant.

Those learning how to care for Bushy Clubmoss should know it prefers cool to mild temperatures, soft indirect light, and an airy, moisture-retentive substrate that never fully dries out.

Main Plant Requirements

Care Difficulty

Hard Care

Light Preference

Partial Shade

Water Requirements

Keep Soil Moist

Temperature Preference

Tropical / Frost Sensitive

Hardiness Zone

10–12

Soil Texture

Peaty, Organic-rich, Loamy

Soil pH

Strongly acidic (4.5–5.5), Acidic (5.5–6.5)

Soil Drainage

Moist but well-drained

Fertilization

Minimal (feed rarely)

Get Personalized Care Plan

Scan your plant to receive care tips personalized for your specific plant

Available on iOS and Android

How to Care for the Bushy Clubmoss

This species prefers soft, filtered light that mimics a forest understory.

  • Provide bright shade or dappled light, such as under taller plants; 2–3 hours of gentle morning sun is acceptable, but avoid direct midday or afternoon sun.
  • Tolerates deep shade for part of the day, yet growth becomes sparse if light is too low; aim for 6–8 hours of indirect daylight for balanced, dense Bushy Clubmoss foliage.
  • Outdoors, give protection from summer sun with shade cloth or tree cover; in winter, slightly brighter exposure helps compensate for shorter days.

Moist, never saturated soil is critical for this clubmoss.

  • Water whenever the top 1–2 cm of soil feels just barely dry, aiming to keep the root zone evenly moist without puddling.
  • Use loose, well-drained, humus-rich soil so excess water runs through; standing water, sour smell, or black, mushy stems indicate overwatering.
  • In cooler seasons reduce volume slightly but do not let the root zone fully dry; crisp shoot tips and curling branches suggest the plant has stayed dry for too long.

Stable, mild temperatures support healthy, dense growth in this species.

  • Aim for 60–75°F (16–24°C) for best growth, with slow but steady development near the cooler end of this range.
  • Avoid temperatures below 40°F (4°C); prolonged exposure near this level or any frost can damage tender stems and lead to dieback.
  • In hot periods above 80°F (27°C), increase shade and humidity while ensuring air movement, since stagnant, hot air raises stress and disease risk.

This species needs consistently high humidity to maintain healthy foliage and growth.

  • Aim for 70–90% humidity, as Bushy Clubmoss is highly moisture-loving and declines in drier rooms.
  • Dry air causes browning tips, crisp, thinning fronds, and stalled new growth near shoot ends.
  • Increase humidity with a covered terrarium, closed cabinet, or room humidifier rather than misting alone.

This species prefers loose, moisture-retentive yet well-drained, organic-rich soil.

  • Use a mix of 50% fine orchid bark, 30% peat or coco coir, and 20% perlite for a springy, aerated structure.
  • Keep soil consistently damp but never waterlogged; free water should drain within a few minutes after watering.
  • Aim for slightly acidic conditions, roughly pH 5.0–6.5, to support Lycopodium deuterodensum root and rhizome function.
  • Avoid dense garden soil, heavy clay, or pure peat that compacts and suffocates the fine roots.

This species is suitable for container growing when moisture and stability are carefully managed.

  • Choose a wide, shallow pot to accommodate its creeping habit and prevent dense matting of rhizomes in deep soil.
  • Select plastic or glazed ceramic containers to slow moisture loss and keep the root zone evenly damp.
  • Use a pot with ample drainage holes so excess water exits quickly, then discard any runoff from outer sleeves or trays.

This species has modest nutrient needs, so use light, consistent feeding during the active growing season for best results when caring for Bushy Clubmoss.

  • Apply a balanced liquid fertilizer (around 10-10-10 or 20-20-20) diluted to 1/4–1/2 strength every 4–6 weeks in spring and summer.
  • Use a gentle, organic option such as dilute compost tea if chemical fertilizer causes tip burn or salt buildup.
  • Skip or reduce feeding in fall and winter when growth slows, but maintain stable moisture and humidity.
  • Leach the potting mix with plain water every 2–3 months to flush excess salts and prevent root stress.

Pruning Lycopodium deuterodensum is light and mostly cosmetic, aimed at maintaining dense, healthy growth.

  • Trim browned, dead, or mechanically damaged stems at the base at any time using clean, sharp scissors.
  • In late winter or early spring, thin out a few crowded stems to improve air movement and light penetration into the interior.
  • Pinch or tip back overly long runners to keep a compact, bushy form and encourage branching from lower nodes.
  • Disinfect tools with alcohol before and after use to limit disease spread in dense, moisture-loving foliage.

Container-grown plants appreciate infrequent but careful repotting to refresh the substrate and maintain healthy root growth.

  • Check for roots circling the pot, pushing through drainage holes, or unexplained slow growth as signals to repot.
  • Plan repotting in early spring every 2–3 years, just before strong new growth begins.
  • Shift only 1 pot size up, using a loose, moisture-retentive but well-drained mix, and handle the fine roots as little as possible.
  • Water thoroughly after repotting, keep humidity high, and shade from direct sun for 1–2 weeks to limit transplant shock.

Propagation of Lycopodium deuterodensum is usually done vegetatively and requires stable, humid conditions.

  • Use division of mature clumps in spring, separating sections with several healthy stems and intact roots.
  • Replant divisions into a fine, moist, well-drained mix and keep humidity at 70–80% with bright, indirect light.
  • Stem pieces with rooted nodes can be layered by pinning them into a new pot of mix until new roots form.
  • Spore propagation is possible but slow and specialized, so it is generally left to experienced growers or nurseries.

Winter care focuses on preventing cold damage and maintaining stable moisture and humidity levels.

  • Treat this species as frost sensitive; avoid exposure below about 40°F for prolonged periods.
  • Move container plants indoors or into a greenhouse before night temperatures drop near freezing.
  • Keep the mix slightly moist, never waterlogged, and reduce watering as growth slows in short, cool days.
  • Avoid cold drafts and direct heat sources indoors to prevent desiccation of delicate foliage.

Care Tips

Use Shallow Pots

Grow plants in wide, shallow containers rather than deep ones to match their fibrous, surface‑oriented root system and reduce the risk of waterlogging in the lower soil layers.

Layered Substrate Zones

Create a 2–3 cm top layer of fine, airy mix over a slightly coarser base mix so young shoots root easily near the surface while excess water can drain into the lower layer.

Regular Tip Pinching

Pinch or clip only the soft shoot tips a few times a year to encourage denser, bushier growth without stressing the plant or exposing older stems.

Horizontal Stem Training

Gently coil or lay longer stems across the substrate surface and lightly pin them down with small wire U-pins so they can root along the stem and form a fuller mat over time.

Frequent Rotation Practice

Rotate the pot 1/4 turn every 1–2 weeks so the foliage develops evenly on all sides and stems do not lean or grow sparse on the shaded side, which is especially helpful when caring for Bushy Clubmoss indoors under one main light source.

Common Pests and Diseases

Spider mites

This pest commonly appears on stressed, dry plants and causes fine webbing and loss of the fresh green color along Lycopodium stems and branchlets. Symptoms include bronzing or dull, sandy-looking foliage that may gradually dry out.

Solution

Increase air humidity, rinse stems thoroughly under lukewarm water, and isolate the plant. For persistent infestations, use repeated applications of insecticidal soap or a light horticultural oil, making sure to coat all sides of the fine foliage without letting the plant dry out afterward.

Fungal stem blight

This disease develops in consistently wet, stagnant conditions and causes black or dark brown lesions on the soft, green stems, which may then collapse in patches. Symptoms include thinning clumps, drooping branchlets, and sections that turn mushy at the base.

Solution

Remove and discard all affected stems, improve air movement, and avoid water sitting on the foliage or in the pot saucer. Allow the surface of the substrate to drain well between waterings and, in severe cases, repot into a fresh, free-draining but moisture-retentive mix and treat with a suitable fungicide labeled for ornamental foliage plants.

Fungal leaf spot

This disease produces scattered brown or dark olive spots on the small scale-like leaves along the stems, often starting on older interior growth. Symptoms include gradual yellowing around the spots and premature drop of affected sections.

Solution

Trim out and dispose of heavily spotted stems, then water at the base to keep foliage as dry as possible. Improve spacing and airflow around the plant, and if spots continue to spread, apply a mild, broad-spectrum fungicide according to label directions while monitoring moisture levels carefully to support Lycopodium deuterodensum care.

Mealybugs

These insects hide in stem joints and within dense foliage, leaving cottony white clusters and sticky honeydew on the plant. Symptoms include slow growth, distorted new tips, and a sooty film where fungi grow on the honeydew.

Solution

Physically remove visible clusters with a cotton swab dipped in isopropyl alcohol, then rinse stems gently with water to dislodge hidden insects. Repeat checks weekly and, if needed, use insecticidal soap or a low-concentration horticultural oil, applied carefully so the fine stems are coated but not left dripping for long periods.

Interesting Facts

Relict of ancient lineages

This New Zealand clubmoss is part of an ancient lycophyte lineage that diverged from the ancestors of modern flowering plants hundreds of millions of years ago, retaining simple microphyll leaves with a single, unbranched vein.

Distinctive bottlebrush form

It forms upright, densely leafy shoots with evenly spaced branchlets that give a bottlebrush or foxtail appearance, a growth pattern that helps distinguish it from related clubmoss species in the region.

Preference for wet forests

In the wild it is most often found in humid, shaded habitats such as wet forest floors and stream margins in New Zealand, where constant moisture and cool air support its slow, steady growth.

Botan icon

Did you know?

Lycopodium deuterodensum produces its spores in compact, cone-like structures called strobili that are carried at the tips of specialized upright shoots, and these dust-fine spores rely on wind dispersal to colonize new moist, shaded sites over relatively long distances.

FAQs about Bushy Clubmoss

This species grows best outdoors in cool, humid, shaded conditions that mimic forest floors. It can be kept indoors if humidity stays high and temperatures moderate, but indoor growth is often slower and more delicate.

Grow Healthy Plants with Botan Care

Keep your plants happy and healthy with plant identification, disease detection, and easy care guidance.

Botan plant care app — identify plants on mobile

Explore More Plants