Commercially available

• ARM 49.100 B
• John Armstrong

7 favorite votes.  
Average rating: EXCELLENT.  

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'.

Grandiflora.  

Dark red, purple shading, vermilion shading, darker highlights.  Mild fragrance.  40 petals.  Average diameter 3.25".  Medium to 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.