'Rittertum' rose Description
Photo courtesy of Marcir
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Red, yellow reverse. Thick stems. None / no fragrance. up to 35 petals. Average diameter 4". Large, borne mostly solitary, high-centered bloom form. Blooms in flushes throughout the season.
Tall, armed with thorns / prickles, spreading, upright. Large, glossy, dark green foliage.
Height of 47" to 6' 7" (120 to 200 cm).
USDA zone 7b and warmer. Can be used for cut flower or garden. Hardy. 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. Requires spring freeze protection (see glossary - Spring freeze protection) . Can be grown in the ground or in a container (container requires winter protection).
Chivalry - Macpow. Nicknamed Power.
New Zealand - Patent No: 109 on 4 Nov 1980
Application No: ROS060 on 9 Jun 1978
PVR Terminated: November 4, 1991.
United States - Patent No: PP 4,281 VIEW USPTO PATENT
According to the New Zealand Plant Variety Rights (PVR) web page, application for a PVR Grant for this rose was made in 1978 and granted in 1980 (PVR Grant No. 109).
[Source: L'Haÿ-les-roses Label]