Photo courtesy of lrwells50
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Red blend Grandiflora.Registration name: JACtwinExhibition name:
Scarlet, white reverse. None / no, rose, opinions vary fragrance. 30 to 35 petals. Average diameter 4". Large, full (26-40 petals), borne mostly solitary, cluster-flowered, in small clusters, high-centered, reflexed bloom form. Continuous (perpetual) bloom throughout the season. Pointed buds.
Armed with thorns / prickles, upright. Large, glossy, dark green, leathery foliage.
USDA zone 6b through 9b (default). Vigorous. Disease susceptibility: very disease resistant. Spring Pruning: Remove old canes and dead or diseased wood and cut back canes that cross. In warmer climates, cut back the remaining canes by about one-third. In colder areas, you'll probably find you'll have to prune a little more than that.
New Zealand - Patent No: 325 on 5 Aug 1986
Application No: ROS183 on 26 Nov 1984
Breeder's Reference: 71-5324
United States - Patent No: PP 4,437 on 17 Jul 1979 VIEW USPTO PATENT
Application No: 05/920,361 on 29 Jun 1978
Inventor: Warriner, William A. (Tustin, California). Assignee: Jackson & Perkins Co. (Medford, Oregon)... cherry and white bicolored flowers with no fragrance, borne in long-stemmed clusters... Parentage: Unnamed variety x 'Redgold' (USPP003006). The primary objective was to produce a new grandiflora bearing multicolored or bicolored blooms.