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botanical name:
Rosa x harisonii 'Harison's Yellow'
Rosa x harisonii 'Harison's Yellow' © Deeproot Plant Base
common name:  Harrison's Yellow Rose, Yellow Rose of Texas, Yellow Sweet Brier, Pioneer Rose
synonyms:  Rosa harisonii, Rosa foetida harisonii, Rosa pimpinellifolia 'Harisonii', Rosa spinosisima 'Harisonii', Rosa lutea hoggii
family:  Rosaceae
characteristics: shrub, scented/aromatic
height: 3.00m
width: 4.00m
growth rate: medium
growth habit: bushy
leaf colour: dark green
flower colour: yellow
fruit colour: black
stem/bark: brown
main season: Summer
aspect: full sun, part shade
conditions: dry soil, moist soil, clay soil, sandy soil
preferred soil pH: neutral
minimum temp: -39°C
USDA zone: 3 to 9
Very vigorous shrub with prickly stems and small divided leaves. Often suckers freely and spreads to form large thickets. Small, fragrant, semi-double to double, soft yellow flowers are freely produced in early summer. Small black hips follow.

Best in fertile, moist, well drained soil in an open sunny position but a hardy and robust grower, tolerant of a wide range of conditions.

Prune after flowering, cutting back some of the oldest stems to the ground. It may be neccessary to remove suckers to limit spread.

From cuttings or separation of rooted suckers.

Can be used for informal hedges.

other notes:
Discovered as chance hybrid seedling of Rosa foetida and possibly Rosa spinosissima at the the house of George E. Harison, New York, about 1830.
Now naturalised across the USA and thought to be the Yellow Rose of Texas.
There is some confusion over the exact name.
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