Rosa 'Ausmas' (Graham ThomasĀ® Austin Rose)
Botanical Information
Family | Rosaceae |
Genus | Rosa |
Cultivar | 'Ausmas' |
Registered Name | Graham Thomas® |
Category | Woody |
Type | Shrub (deciduous) |
Origin | David Austin, 1983. |
Details
USDA Hardiness Zone | 6b - 7a |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | 6a - 6b |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H6 |
RHS Hardiness Ref. | |
Temperature (°C) | -21 - (-15) |
Temperature (°F) | -5 - 5 |
Height | 1.2 m |
Spread | 1.5 m |
Growth | Medium |
Flowering Period | May, June, July, August, September |
Description and Growing Information
General Description | This cultivar has large, pale-orange flowers that bloom during the summer. Delicate, ovate leaves extend from the thorn-riddled stem. |
Shape | Bushy. |
Landscape | Shrub or mixed border, specimen, or hedge. |
Propagation | Propagate by hardwood cuttings. |
Cultivation | Grows best in average, medium moisture, well-drained soil. The best flowering and disease resistance occur in full sun. Water heavily and regularly but avoid overhead watering. |
Pests | Black spot, powdery mildew, rust and rose rosette. |
Notable Specimens | Niagara Parks Botanical Garden, Niagara Falls, Ontario, Canada. Chelsea Physic Garden, London, United Kingdom. |
Habitat | Horticultural origin. |
Flower Description | Showy, yellow flowers. They are medium sized cup shaped flowers and their colour is an unusually rich, pure yellow that would be hard to match even among modern roses, and is entirely missing from old roses. There is a medium-strong, fresh tea rose fragrance. |
Photographs
Rosa 'Ausmas', form. Niagara Parks Botanical Garden, Niagara Falls, Ontario, Canada.
Rosa 'Ausmas', leaf. Niagara Parks Botanical Garden, Niagara Falls, Ontario, Canada.
Rosa 'Ausmas', flower. Niagara Parks Botanical Garden, Niagara Falls, Ontario, Canada.
![](photos/Rosa-Ausmas-frm.jpg)
![Rosa 'Ausmas', leaf. Chelsea Physic Garden, London, United Kingdom. Rosa 'Ausmas', leaf. Chelsea Physic Garden, London, United Kingdom.](photos/Rosa-Ausmas-lf.jpg)
Rosa 'Ausmas', leaf. Chelsea Physic Garden, London, United Kingdom.
![Rosa 'Ausmas', flower. Chelsea Physic Garden, London, United Kingdom. Rosa 'Ausmas', flower. Chelsea Physic Garden, London, United Kingdom.](photos/Rosa-Ausmas-flw.jpg)
Rosa 'Ausmas', flower. Chelsea Physic Garden, London, United Kingdom.
Awards
![](images/RHS_logo.jpg)