Cylindrolobus marginatus

Orchid in in vitro culture – Lot of 15 plants minimum (see more) Cylindrolobus marginatus – Technical Data Sheet

Origin and Classification

• Scientific name: Cylindrolobus marginatus (Rolfe) S.C.Chen & J.J.Wood

• Origin: Southeast Asia (Southern China, Yunnan, Myanmar, Thailand, Vietnam), where it grows as an epiphyte in humid tropical forests [powo.science.kew.org].

• Natural habitat: Low-altitude rainforests, on tree trunks or branches.

• Classification: Orchidaceae family, Epidendroideae subfamily, Podochileae tribe.

• Synonyms: Eria marginata Rolfe, Pinalia marginata (Rolfe) Kuntze.

Appearance

• Size: Small to medium (10–20 cm in height).

• Pseudobulbs: Claviform (club-shaped), clustered, green or yellowish (5–10 cm long).

• Leaves: Lanceolate, leathery, dark green, narrow (5–10 cm long).

• Roots: Fine, adapted to mounted culture or small baskets.

Flowers

• Shape: Flowers in short and dense clusters, borne on erect or slightly pendant spikes.

• Color: Creamy white to pale yellow, with a white or slightly purple-spotted lip. Some varieties may feature pink or pale green shades.

• Fragrance: Light, floral.

• Flower size: 1–2 cm in diameter.

• Blooming period: Spring–summer (March–July).

• Bloom duration: 2–3 weeks per flower.

Cultivation

Temperature

• Day: 20–28°C.

• Night: 14–18°C (a day/night drop of 6–8°C promotes blooming).

• To avoid: Temperatures <10°C or >32°C [powo.science.kew.org].

Humidity

• Ideal rate: 70–80% year-round.

• Tip: Use a humidifier or a terrarium to maintain humidity in dry indoor environments.

Light

• Intensity: 15,000–25,000 lux (filtered and indirect light).

• Ideal source: East or north window, or artificial lighting (horticultural LEDs).

• To avoid: Direct sunlight during hot hours.

Watering

• Growth period (spring–summer): Regular watering (every 2–3 days), letting the substrate dry out slightly between waterings.

• Rest period (autumn–winter): Reduce to 1–2 times per week, without letting it dry out completely.

• Method: Misting or quick soaking with soft water.

Substrate

• Mounting: On a cork, tree fern, or bark plaque, with a layer of sphagnum moss.

• Basket: Highly draining mix – fine bark (60%), sphagnum moss (30%), charcoal (10%).

• Repotting: Every 1–2 years, in spring.

Fertilization

• Growth period: Balanced fertilizer (20-20-20), diluted to ¼ strength, every week.

• Rest period: Reduce to every 2–3 weeks in winter.

Tips for Successful Cultivation

• To maximize blooming: Maintain high humidity and a distinct day/night temperature drop. Cultivate in a terrarium or under a cloche if the air is dry.

• To preserve root health: Avoid standing water and ensure good ventilation. Do not allow the substrate to dry out completely.

• To boost vigor: Fertilize with a high-nitrogen fertilizer (spring–summer), then a high-phosphorus fertilizer (autumn). Protect from cold drafts in winter.

Additional Remarks

• Cylindrolobus marginatus is a miniature and elegant species, ideal for collectors of Asian orchids or terrariums.

• A lot of 15 plants allows for grouped cultivation in terrariums or hanging baskets, with an abundant and colorful bloom.

• Perfect for warm, humid greenhouses, or for indoor growing under artificial light.