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Conservatory Greenhouse

Dendrobium Sun Sprite gx

A medium-sized, clump-forming orchid with upright, cane-like stems (pseudobulbs). The stems are 70-90cm long, covered with thin, alternate sheaths. Lance-shaped, dark green, leathery leaves are carried near the tip of each cane. Each leaf is up to 15cm long and 3-4cm wide. Flowering stems emerge from the leaf axils and tips of mature canes and bear a long cluster of 2cm small, scented flowers. The flowers are usually white, sometimes cream, with a hint of pale pink.

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Ultimate height

0.5–1 metres

Time to ultimate height

5–10 years

Ultimate spread

0.5–1 metres

Moisture

Well–drained

pH

Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or North–facing or South–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

H1C

Botanical details

Family: Orchidaceae
Native to GB / Ireland: No
Foliage: Evergreen or Semi evergreen
Habit: Clump forming, Columnar upright
Genus: Dendrobium are epiphytic and terrestrial orchids with elongated, stem-like pseudobulbs bearing linear to ovate leaves. Racemes or panicles of showy flowers are produced from nodes along the stems mainly in spring
Name status: Accepted

How to grow

Cultivation

Plants are best grown in a pot in an epiphytic, medium grade, bark-based potting mix with added perlite, moss, or coir. As with many orchids, they grow best when the roots are slightly restricted. Therefore, avoid over-potting or frequent root disturbance. Provide dappled shade and higher humidity in spring and summer, then move the plant to a bright, but cool room in autumn and winter. Cool growing Dendrobiums require longer period of winter rest. Reduce watering and feeding until warmer temperatures initiate flowering and new growth in spring. Average temperatures are 16-24°C in summer and 10-16°C during winter. See indoor orchid cultivation

Propagation

Propagation by seed is only possible in controlled laboratory environment. Mature plants may be divided when the plant overgrows the pot. Sideshoots (keiki) may develop on older canes - remove and pot them into sphagnum moss when the new roots are at least 2cm long.

Suggested planting locations and garden types

Houseplants
Conservatory and greenhouse

Pruning

No pruning required. Remove spent flowers as necessary, but do not cut the whole cane unless completely shrivelled. Oldest canes may be removed as long as there are enough, younger, thick, leaf-bearing canes on the plant.

Pests

May be susceptible to scale insects, aphids, mealybugs and red spider mite.

Diseases

Generally disease-free.

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