Brief summary
Modern Rose, floribunda "Princess of Wales", United Kingdom, introduced by Harkness & Co. Ltd in 1997, Usually is white in color, semi double bloom shape, blooms 6 - 7 cm in size, has 3-5 buds per stem, repeat rebloom, has moderate fragrance, the bush shape can be bushy, 70 - 80 cm in height, 60 cm in width, suitable for USDA zone 6 from -23°C and above, low resistance to rain, low resistance to black spot, moderate resistance to mildew.
More information
This white floribunda was selected by Diana, Princess of Wales, to carry her name. A portion of the proceeds from sales of this rose goes to charity. The variety performs better in dry climates, where bud rot and other diseases are less frequent; in its country of origin, England, it is susceptible to black spot and rain can spoil the blooms. Buds are creamy white; the open flowers are snow white, produced abundantly across the bush, typically in clusters of 3–8. The shrub is compact, low, not particularly vigorous, and reblooms quickly.
The color is a clear, pure white that appears very bright in strong sun. A faint pink tinge may occasionally occur. For a white flower, the color holds up well in rain. Buds are globular; blooms open goblet-shaped, then flatten, with several rows of neatly arranged petals. Each bloom has about 35 petals and is approximately 6 cm in diameter. The fragrance is light, with rose and myrrh notes. The inflorescences are cyst-shaped, averaging nine flowers that open in sequence. As one cluster finishes, another follows. The bush produces many shoots whose growth is easy to manage, allowing a rounded crown. Flowers cover the plant nearly to the ground, and the display runs from bottom to top. Height does not exceed 75 cm, with a width of about 60 cm. It performs best in reasonable light and tolerates shade. Foliage is large, abundant, and dense; young leaves emerge bronze. Reported disease resistance is high, with only occasional powdery mildew. A noted drawback is that individual blooms open quickly.