Harrison's Yellow rose is the Yellow Rose of Texas. Rosa harisonii is classified as a Hybrid Foetida rose. Texas yellow rose plant picture and care instructions.
'Harison's Yellow' is a large shrub rose bearing masses of small, semi-double, dark yellow blooms with golden centers. The intensely fragrant flowers put in their yearly appearance in late spring. Rosa harisonii blooms most heavily in cool, dry weather.
If you leave the bush untrimmed, these glorious blooms will be replaced by unusual oval-shaped, black hips.
The blooms form on old wood so wait until after the petals fall to do any shaping. Give it room to grow. You won't relish the idea of pruning it. The canes are wickedly thorny.
Anything from full sun to the high shade found under tall trees will suit it.
The plant exhibits an open, bushy growth habit and spreads by suckering. Dig and move these to increase your collection.
The Texas Yellow rose was hybridized by, you-guessed-it, Harison and introduced in 1830. Records of this old rose's parentage have been lost, but it is thought to be the offspring of Rosa spinosissima x R. foetida.
It is prized for its cold tolerance, and received the Royal Horticultural Society Award of Garden Merit in 1993.
The 5-8 foot rose bush is hardy down to 40 below 0 F. It is recommended for planting in USDA zones 4a-9b.
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