How to Grow Charlesworth's Paphiopedilum
iNaturalist
Charlesworth's Paphiopedilum
Paphiopedilum charlesworthii
flowerPaphiopedilum charlesworthii is a terrestrial orchid species native to the Himalayan region, prized for its distinctive pouch-shaped flowers with deep burgundy-red coloring and a characteristic slipper-like labellum. It is a slow-growing, long-lived orchid that produces one to two flowers per inflorescence and blooms primarily in winter to early spring. This species is moderately challenging to cultivate but rewarding for experienced orchid growers.
When should you plant Charlesworth's Paphiopedilum in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Charlesworth's Paphiopedilum timeline · Pittsburgh, PA (Zone 6b)
-
Plant Charlesworth's Paphiopedilum
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
First Charlesworth's Paphiopedilum blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Charlesworth's Paphiopedilum dates for your own zip code.
Growing Conditions
Soil
Growth Stages
Seedling to Young Plant
12-18 monthsSmall plant with 3-5 leaves developing; very slow initial growth
Maintain warm temperatures (65-75°F), consistent moisture, and bright indirect light; keep in humid conditions; repot as new leaves emerge
Vegetative Growth
12-18 monthsPlant develops mature foliage with mottled, dark green leaves arranged in a rosette; 5-8 leaves present
Maintain steady fertilizing schedule with dilute orchid fertilizer; ensure excellent drainage and air circulation; monitor for pests weekly
Bud Formation
4-8 weeksFlower spike emerges from base of plant with a single terminal bud developing; spike gradually lengthens
Provide cooler nighttime temperatures (55-60°F) to encourage blooming; reduce nitrogen in fertilizer and increase phosphorus/potassium; maintain humidity and consistent watering
Flowering
6-10 weeksOne to two deep burgundy-red flowers with distinctive pouch-shaped labellum unfold; petals spread horizontally; flowers last 6-10 weeks
Maintain 50-60% humidity; keep temperatures moderate (60-75°F); avoid moving plant; do not mist flowers; water at base only; reduce fertilizer or stop fertilizing
Post-Bloom Rest
3-4 monthsFlowers fade and drop; plant returns to vegetative growth mode with no visible dormancy period
Resume regular fertilizing with balanced orchid formula; return to normal watering; prune dead flower spike; prepare for next growing season
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Increase humidity to 70%+; spray with neem oil or miticide; mist foliage regularly; isolate affected plant
-
Remove manually with soft cloth and rubbing alcohol; treat with horticultural oil; repeat every 7-10 days until eradicated
-
Apply neem oil or insecticidal soap; isolate plant; inspect new plants before introducing to collection
-
Reduce watering frequency; use well-draining media; apply sticky traps; consider soil drench with nematodes if severe
-
Spray with water jet to dislodge; apply insecticidal soap; use neem oil; repeat weekly as needed
Uses
Ornamental Display
HouseholdPaphiopedilum charlesworthii is prized as an exotic houseplant and collector's specimen, bringing rare Himalayan beauty to indoor gardens and conservatories. The deep burgundy flowers and unique pouch structure make it a striking focal point in any room. [source]
Cut Flower Arrangements
CraftThe long-lasting flowers (6-10 weeks) are excellent for cut arrangements and orchid exhibitions. When properly cut and conditioned, they maintain beauty and freshness for extended periods in floral designs. [source]
Orchid Pollination and Evolution
WildlifeThis species is historically important in orchid breeding and demonstrates specialized pollination mechanisms involving specific bee or insect pollinators in its native habitat. Studying Paphiopedilum species has contributed significantly to understanding orchid-pollinator coevolution. [source]
Harvest Tips
Cut flower spikes at the base once flowers fade and petals drop; sterilize cutting tool with isopropyl alcohol between cuts; do not harvest flowers prematurely; allow plant to rest 3-4 months before expecting next bloom cycle
Fun Facts
- 🌱 Paphiopedilum charlesworthii was first collected in the Sikkim-Nepal region of the Himalayas and was named by English orchid hybridizer John Seden in honor of orchid collector William Charlesworth in the 1890s.
- 🌱 The distinctive pouch-shaped labellum (lip) of lady's slipper orchids functions as an insect trap—pollinators enter the pouch and must crawl past the pollinia (pollen structures) to escape, ensuring pollination.
- 🌱 Paphiopedilum charlesworthii is notoriously slow-growing and difficult to propagate; seed-grown plants may take 5-7 years to reach blooming size, making nursery-propagated plants relatively expensive among orchid collectors.
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Charlesworth's Paphiopedilum planting timeline
Tell us your zip code and we'll calculate exactly when to start Charlesworth's Paphiopedilum seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Charlesworth's Paphiopedilum timeline →