Emmenopterys henryi (Man Yang Tree)
Michael's Opinion
This outstanding tree can grow to be 45 m tall and can live to be as old as 1000 years. They are known for the rarity of their flowering, taking as much as 30 years in between each active flowering period.
Botanical Information
| Family | Rubiaceae |
| Genus | Emmenopterys |
| Species | henryi |
| Category | Woody |
| Type | Tree (deciduous) |
| Origin | China and Vietnam. |
Details
| USDA Hardiness Zone | 8a |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 8a (Requires cool season protection under glass.) |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H5 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -12 |
| Temperature (°F) | 10 |
| Height | 10 - 45 m |
| Flowering Period | June, July, August |
Description and Growing Information
| General Description | Named after botanist Augustine Henry. Recently acquired the common name The Man Yang Tree. |
| Cultivation | In the wild they grow up to 45 meters but in cultivation the can only be expected to reach a height of about 10 - 15 meters. |
| Notable Specimens | Wakehurst Place, Sussex, England where the first recorded flowering took place and subsequently required 23 years to be seen flowering again. Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. Botanic Garden, Cambridge University, Cambridge, England. Tatton Park, Knutsford, Cheshire, England. |
| Flower Description | Only five flowerings have been recorded in the UK so far. The first flowering takes about 30 years from seed. The tree at the Cambridge Botanic Garden flowered for the first time in 2012 while the specimen at Tatton Park flowered in 2014. |
Photographs
