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20 favorite votes.  
Average rating: EXCELLENT-.  

White, near white or white blend Hybrid Tea.
Registration name: Matterhorn ® (Hybrid Tea. Swim/Armstrong. 1965)
Exhibition name: Matterhorn ®

Bred by David L. Armstrong (United States, 1965). Bred by Herbert C. Swim (United States, 1965).
Introduced in United States by Armstrong Nursery in 1965 as 'Matterhorn'.
Introduced in Australia by Treloar Roses in 1966 as 'Matterhorn'.
Introduced in France by NIRP International in 1967 as 'Matterhorn'.

Hybrid Tea.  

Cream.  Mild fragrance.  35 to 45 petals.  Average diameter 4.75".  Very large, very full (41+ petals), in small clusters, high-centered bloom form.  Blooms in flushes throughout the season.  

Tall, arching, upright.  Large, semi-glossy, dark green, leathery foliage.  

Height: up to 2' (up to 60cm).  

USDA zone 6b through 9b (default).  Can be used for cut flower or garden.  Very vigorous.  Protect tender new spring growth from hard freezes that may cause canker, die-back and death of the plant. .  Remove spent blooms to encourage re-bloom.  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.  Remove old canes and dead or diseased wood..  

United States - Patent No: PP 2,688  on  6 Dec 1966   VIEW USPTO PATENT