OSMANTHUS DECORUS

Osmanthus decorus

Commonly known as the Caucasus osmanthus (although in this instance it is better known by its botanical name), Osmanthus decorus is a dome-shaped, tough evergreen shrub native to west Asia. Introduced to western science in in 1866 it is noted for its large, glossy leaves and fragrant blooms.

Under favourable condition you can expect Osmanthus decorus to reach a height of up to 3 m with an approximate width of 4-5 m. The long, narrow leaves are between 5-10 cm long with a leathery surface texture.

Caucasus osmanthus in bloom

This species is hermaphrodite meaning that it has both male and female organs on the same plant. The clusters of small, white blooms are borne freely in the spring (around April) and are followed by purplish-black drupes (stone fruit) in September.

It will grow in any well-drained soil full sun or part shade, however it will flower more freely in a sunny, sheltered position. It will prefer a neutral to acid soil, but Osmanthus decorus has also proven to tolerate some chalk. It will even succeeds in dry shade. It can become damaged in exposed conditions although it is more tolerant of strong, cold winds than other members of this genus. However it will not perform well with maritime expose. Once established, Osmanthus decorus has proven to be hardy to about -20°C.

No regular pruning is necessary.

Images by Carduelis - Made self, Public Domain, https://commons.wikimedia.org/w/index.php?curid=4891545

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