本文发表在 rolia.net 枫下论坛"J.P. Connell, introduced in 1987, was the first yellow rose to be released from the Ottawa breeding program. This vigorous upright bush grows 1.0 - 1.5 m high and 0.8 - 1.2 m in diameter. The plant is winter-hardy and has good resistance to powdery mildew but has some susceptibility to blackspot. When grown in full sun, 1 - and 2 - year old plants flower sparsely, but older plants flower heavily in June, with smaller numbers of flowers produced during the rest of the season.
Initially, the lemon yellow flowers have high centres resembling those of a hybrid tea but later open to expose the stamens and then fade to a cream colour. They have a diameter of 7 - 9 cm and are produced singly or in clusters of 3 - 8. Plants root readily from softwood cuttings.
This selection has been tested at Ottawa since 1974. The plant survives the winter without protection, other than natural snow cover, but some pruning of deadwood is required in the spring. It is hardy in zone 3.
J.P. Connell originated from a cross between the floribunda, Arthur Bell, and an open-pollinated seedling of the hardy shrub rose, Von Scharnhorst"更多精彩文章及讨论，请光临枫下论坛 rolia.net