Tuesday, July 6, 2010

Pearl Bloom Tree

Poliothyrsis sinensis
A fast growing, deciduous tree that can reach up to 70 x 40 feet with a trunk diameter of 1.5 feet with have a wide spreading crown when mature. It looks like a Balsam Poplar when young and like a Catalpa when old. It is native to central China. Some records include: fastest growth rate - 7 feet; 20 years - trunk diameter of 8 inches.
The toothed, broadly-ovate leaves are up to 9 x 5 inches in size. The foliage is reddish at first, turning to mid-green above, lighter and hairy beneath. The leaves turn to yellow and deep red during autumn.
The white flowers are borne on terminal panicles, up to 12 inches in length, during early summer. Only female trees produce seed.
The bark is furrowed and light brown.
Hardy zones 6 - 9 ( reports of 5 though not fully tested ) in full sun to partial shade on moist, fertile, well drained soil. Prefers hot humid summers.

* photo taken on May 1 2010 @ U.S. National Arboretum, D.C.

* photo taken on May 8 2010 @ U.S. National Arboretum, D.C.

* photos taken on 4th of July 2010 @ U.S. National Arboretum, D.C.

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

* photos taken on Feb 8 2014 @ U.S. National Arboretum, DC

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

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