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Osmanthus delavayi

Osmanthus delavayi
Delavay Osmanthus, Delavay Tea Olive, Delavay's Osmanthus

4,7/5
13 reviews
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1 reviews

Instead of the 1st one that didn't survive. Although very small, it still flowered but impossible to smell them unless you get down on your knees due to their size. New slightly coppery leaves emerge at the end of the shoots. Rapid growth not observed. Waiting for the definitive recovery and the next scented flowering.

Nathalie F., 20/05/2023

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This plant carries a 24 months recovery warranty

More information

Graden Merit Value-for-money
Bush with evergreen foliage, adorned with a springtime flowering of white flower bunches, with a jasmine-like fragrance; its cultivation is best suited for temperate regions.
Flower size
5 cm
Height at maturity
3.50 m
Spread at maturity
3.50 m
Exposure
Sun, Partial shade
Hardiness
Hardy down to -9°C
Soil moisture
Moist soil
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Recommended planting time March to May, September to November
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Flowering time April to May
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Description

The Osmanthus delavayi is an evergreen bush with a spring flowering of white flowers in clusters, with a jasmine fragrance; it is best suited for temperate regions.

Originally from China, this 3-4m (10-13ft) tall Osmanthus, also known as Siphonosmanthus, forms a compact and globose bush. The opposite, leathery, shiny, dark green leaves are 3cm (1in) long and sometimes prickly. In April, clusters of tubular, highly scented white flowers, 5cm (2in) long, bloom and later give way to blue-black berries. Its fragrance is similar to that of jasmine.

The Osmanthus delavayi is hardy up to -10°C (14°F) and grows in any moist, fertile, well-worked and well-drained soil, even chalky, in a sunny or semi-shaded position. Find a sheltered spot for it, protected from strong winds and heavy frost. Mulch in autumn.

The Osmanthus delavayi is a fast-growing screening plant and is ideal for hedges with photinias, aucubas, and laurustinus, as well as for flower beds in white gardens.

Osmanthus delavayi in pictures

Osmanthus delavayi (Flowering) Flowering
Osmanthus delavayi (Foliage) Foliage
Osmanthus delavayi (Plant habit) Plant habit

Plant habit

Height at maturity 3.50 m
Spread at maturity 3.50 m
Habit Irregular, bushy
Growth rate normal

Flowering

Flower colour white
Flowering time April to May
Flower size 5 cm
Fragrance Fragrant, jasmine

Foliage

Foliage persistence Evergreen
Foliage colour dark green

Botanical data

Genus

Osmanthus

Species

delavayi

Family

Oleaceae

Other common names

Delavay Osmanthus, Delavay Tea Olive, Delavay's Osmanthus

Origin

Cultivar or hybrid

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Planting and care

The Osmanthus delavayi should be planted in spring with a spacing of 60/80cm (24/32in) for hedges. Dig a hole twice and a half times the size of the pot, loosen the bottom and add a large handful of horticultural compost or mix slow-release fertilizer with loose soil. Water well and mulch the soil to keep it fresh. After flowering, prune lightly to balance the shape and promote growth. It can withstand temperatures down to -10°C (14°F) if the soil is well-drained and mulched in autumn.

Planting period

Recommended planting time March to May, September to November

Intended location

Type of use Border, Free-standing, Container
Hardiness Hardy down to -9°C (USDA zone 8b) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, rich, well-drained

Care

Soil moisture Moist soil
Overwinter Can be left in the ground
4,7/5
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