Sunday, June 24, 2012

Trachelospermum

Trachelospermum
A genus of vines that are part of the larger Dogbane family.

Trachelospermum asiaticum ( Asiatic Jasmine )
A very beautiful, evergreen groundcover, reaching up to 1 foot in height, that may also become a vine, reaching up to 33 ( rarely over 20 ) feet high if provided a lattice. When used as groundcover, the stems root as they touch the ground. The Asiatic Jasmine is native from India through southern China and Korea to Japan; south to Thailand.
The elliptical leaves, up to 4 x 3 ( rarely over 3 ) inches in length, are glossy deep green.
The fragrant, creamy-white flowers, up to 0.7 inches wide, appear late spring into early summer.
Hardy zones 7 to 9 in full sun or shade on well drained soil. It is drought tolerant and moderately drought tolerant. In sun, the foliage may scorch then fall during hard winter freezes; do not declare the plant dead as regrowth is often rapid during late spring into summer.

* photos taken on June 23 2013 @ U.S. National Arboretum, DC

* photo taken on Oct 17 2017 in Elkridge, MD


'First Snow'

* photo taken on June 23 2013 @ U.S. National Arboretum, DC

* photos taken on Sep 3 2017 @ U.S. National Arboretum, D.C.


'Ogon Nishiki'

* photo taken @ U.S. Botanical Garden, Wash., DC on Aug 25 2014


'Red Wing'
The foliage is bright red at first, it is otherwise identical to the species.

'Variegatum'
Fast growing and dense, with glossy foliage that is edged in creamy-white.

Trachelospermum difforme ( Climbing Dogbane )
Also called Thrysanthella difformis. A twining, high-climbing vine, native to moist woods in the southeastern U.S. ( from eastern Oklahoma to St Louis, Missouri to southern Indiana to southeast Kentucky to central Maryland & Delaware; south to eastern Texas to northern Florida ). The stems can be up to 0.5 inches in diameter at the base.
The paired lance-shaped to obovate leaves are up to 4.8 inches in length. The foliage is glossy mid-green above, whitish beneath. The leaves exude a white milky sap.
The flowers are pale yellow.
They are followed by a reddish-brown, long, very narrow seed pod up to 8 x 0.1 inches in size.
Hardy zones 6 to 9.

Trachelospermum jasminoides ( Chinese Star Jasmine )
A moderate growing, self-clinging vine, reaching a maximum height of 60 feet, though typically much smaller. It can be used as a groundcover to cover large areas. It is native to most of southern China, Korea, Japan and Vietnam.
The oval leaves, up to 4 x 2 inches, are glossy deep green. The foliage is often bronzy-purple at first.
The very fragrant, small, 5-petalled, creamy-white flowers are borne in clusters up to 2.8 inches across during summer.
Hardy zones 8 to 10 in partial shade on light, fertile, acidic, well drained soil.

* photo taken on July 17 2012 in Columbia, MD

* excellent videos found on Youtube

'Japonicum'
The white-veined foliage turns reddish during the winter.

'Madison'
Hardier, surviving as far north as zone 7.
This vigorous form has leaves that are downy beneath.

* photos taken on June 30 2013 @ U.S. National Arboretum, DC

* photos taken on Aug 27 2017 in Elkridge, MD


'Marbled'

* photo taken on June 30 2013 @ U.S. National Arboretum, DC


'Tricolor'
Attractive foliage that is green with pink and creamy-white variegation.

* photo taken on Oct 21 2016 in Annapolis, MD


'Variegatum'
The gray-green foliage is edged in creamy-white which turns pink during winter. A similar var wilsonii 'Variegatum' is more somewhat more cold hardy.

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