How to Grow Ascocenda 'Princess Diana'
Ascocenda 'Princess Diana'
Ascocenda 'Princess Diana' (hybrid orchid)
flowerAscocenda 'Princess Diana' is a striking hybrid orchid resulting from crosses between Ascocentrum and Vanda species, renowned for its vibrant pink to magenta flowers with distinctive patterns. This epiphytic orchid produces tall, upright stems with long, strap-like leaves and multiple small flowers in dense, showy inflorescences. It is a warm-growing orchid ideal for intermediate to warm greenhouse or home conditions.
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Example Ascocenda 'Princess Diana' timeline · Pittsburgh, PA (Zone 6b)
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Plant Ascocenda 'Princess Diana'
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Ascocenda 'Princess Diana' blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in USDA zones 11-12; can be grown indoors year-round in cooler climates with proper temperature control
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Get my Ascocenda 'Princess Diana' timeline →Growth Stages
Establishment
1-2 monthsYoung plantlet or division with minimal roots and 2-3 leaves, recently potted in orchid bark media
Maintain high humidity (70-80%) and keep media evenly moist. Avoid direct strong sun. Support with stake if needed. Mist twice daily.
Vegetative Growth
6-12 months (can be ongoing)Plant develops new leaves along the tall, upright stem; root system expands. Stem elongates with characteristic strap-like leaves spaced alternately.
Increase light gradually. Water regularly as new growth emerges. Apply balanced orchid fertilizer weekly at 1/4 strength during active growth (spring-summer). Maintain warm temperatures (70-85°F day, 60-70°F night).
Flowering Initiation
3-6 weeks spike development before first bloomFlower spikes emerge from leaf axils; buds form along the inflorescence. Plant typically blooms once annually, with spike emergence in fall or early winter.
Slightly reduce watering frequency and allow a slight cool period (5-10°F drop at night). Maintain bright light. Stop high-nitrogen fertilization; switch to bloom-promoting formula (higher phosphorus and potassium).
Flowering
4-8 weeksMultiple small pink to magenta flowers open sequentially along spike, creating a dense floral display. Flowers are typically 1-1.5 inches wide and highly fragrant. Bloom lasts 4-8 weeks.
Maintain bright, cool conditions if possible. Continue misting around (not on) flowers. Reduce fertilizer frequency. Stake spike for support if heavy. Enjoy the display; pollination is unlikely indoors.
Post-Flowering Rest
4-8 weeksFlowers fade and fall. Spike may be removed or left until completely brown. Plant enters a brief rest period before resuming vegetative growth.
Remove spent spike at base. Return to regular watering and feeding schedule. Resume warm day temperatures (75-85°F). Continue bright light. New growth initiates within 4-6 weeks.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity to 70%+; spray with neem oil or insecticidal soap weekly until resolved. Ensure good air circulation.
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Isolate plant; remove visible pests with 70% isopropyl alcohol on cotton swab. Spray with neem oil every 7 days for 3-4 weeks.
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Hand-remove with alcohol swab or plastic scraper. Apply dormant oil or insecticidal soap monthly until control achieved.
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Isolate plant; use yellow sticky traps. Spray with spinosad or insecticidal soap every 5-7 days for 2-3 weeks.
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Improve air circulation and reduce humidity. Remove rotted portions with sterile knife. Repot in fresh media. Avoid overwatering.
Uses
Cut flowers and floral arrangements
HouseholdAscocenda 'Princess Diana' produces stunning pink inflorescences ideal for cutting and arranging in bouquets, corsages, and permanent floral displays. Individual flowers last weeks in water, and the spike structure adds vertical interest to arrangements. [source]
Indoor ornamental plant
HouseholdAs an attractive houseplant or greenhouse specimen, this orchid enhances indoor spaces with its glossy foliage and vibrant blooms year-round under proper conditions. The tall, architectural form works well as a focal point in modern décor. [source]
Pollinator-friendly (in nature)
WildlifeIn native tropical habitats, Ascocenda flowers attract orchid bees and other pollinators through color and fragrance, supporting tropical ecosystem biodiversity. [source]
Edible flower garnish
CulinaryIndividual Ascocenda flowers can be used as elegant, non-toxic edible garnishes for gourmet dishes and cocktails, adding luxury and visual appeal without flavor impact. [source]
Pressed flower crafts and preservation
CraftDried or pressed Ascocenda flowers are used in botanical art, resin jewelry, bookmarks, and scrapbooking projects, preserving their vivid colors and delicate structure. [source]
Harvest Tips
Ascocendas are ornamental orchids grown for cut flowers rather than harvested for food or medicine. Cut flower spikes at base after blooms fade naturally, or harvest spikes at peak bloom (when 3-5 flowers are open) for arrangements. Cut spikes can last 2-3 weeks in water; condition in flower food before arranging. Leave plant intact for future seasonal blooms.
Fun Facts
- 🌱 Ascocenda 'Princess Diana' was bred to combine the compact growth habit and vibrant colors of Ascocentrum with the tall stature and prolific blooming of Vanda species, making it easier to grow than pure Vandas while retaining stunning flowers.
- 🌱 The flowers are sweetly fragrant, particularly in the morning and evening hours, and the scent is traditionally associated with tropical orchids in perfumery and cosmetics.
- 🌱 Ascocendas are monopodial orchids, meaning they grow from a single main stem that continuously extends upward throughout the plant's life—mature plants can reach 2-3 feet tall and remain in flower for decades with proper care.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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