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'John S. Armstrong' rose Description
'John S. Armstrong' rose photo
Photo courtesy of Marianna Malik
Commercially available
HMF Ratings:
6 favorite votes.  
Dark red Grandiflora.
Registration name: John S. Armstrong
Exhibition name: John S. Armstrong
Bred by Herbert C. Swim (United States, before 1958).
Introduced in United Kingdom by R Harkness & Co. Ltd. in 1961 as 'John S. Armstrong'.
Introduced in Australia by C. H. Isaac in 1962 as 'John S. Armstrong'.
Dark red.  Mild fragrance.  40 petals.  Medium-large, full (26-40 petals), cluster-flowered, in small clusters, exhibition bloom form.  Blooms in flushes throughout the season.  Ovoid buds.  
Tall, bushy.  Semi-glossy, dark green, leathery foliage.  
USDA zone 7b and warmer.  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) .  
United States - Patent No: PP 2,056  on  23 May 1961   VIEW USPTO PATENT
Application  on  15 Aug 1960
John Samuel Armstrong (October 11, 1865 Brantford, Ontario, Canada - June 12, 1965 Ontario, CA) founded Armstrong Nurseries in 1898.