Phalaenopsis grandifloram 'Alassio'
A medium-sized, evergreen, epiphytic orchid with fleshy, broadly-oval leaves up to 40cm long and 6-8cm wide. Upright flowering stems emerge from the base of older leaves on short, central stem throughout the year. Each stem, up to 60cm tall, carries twelve or more, 10cm large flowers. Petals and sepals are bright, yellow-green with orange and white lip. Flowers are bilaterally symmetrical, non-fragrant, but long-lasting
Size
Growing conditions
Colour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | ||||
|---|---|---|---|---|
| Summer | ||||
| Autumn | ||||
| Winter |
Position
Aspect
Exposure
Botanical details
- Family
- Orchidaceae
- Native to GB / Ireland
- No
- Genus
Phalaenopsis are a large genus of species and hybrid mainly epiphytic orchids. Short, upward growing, stem-like rhizomes with no pseudobulbs produce oval, fleshy mid to dark green leaves and flowers in branched racemes from the base of the leaves
- Name status
Unresolved
How to grow
Cultivation
Grow in an open bark-based orchid compost or mounted on cork bark, where sufficient humidity can be provided. Provide enough bright filtered light, but keep away from direct mid-day sunlight or heating source. Ideal temperatures are around 17°C at night and 20 - 25 °C during day. Mist aerial roots regularly and water the plant when almost dry - pale, silvery roots are a good indication when to water. Orchid fertiliser can be applied regularly throughout the season. See Phalaenopsis cultivation for more details
Propagation
Propagation by seed is only possible in controlled laboratory environment. Mature plants may produce sideshoots (keiki) which may be removed and potted separately into sphagnum moss when the new roots are at least 2cm long
Suggested planting locations and garden types
Pruning
No pruning required. Cut back green flowered stem to lower node to encourage further flowering. Remove the flowered stems once yellow and dry
Pests
May be susceptible to mealybugs, aphids and scale insects
Diseases
Generally disease-free. Avoid watering centre of the leaf crown, to prevent bacterial rots
Get involved
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