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'Indian Summer' rose Description
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'Indian Summer (climbing hybrid tea, Duehrsen, 1937)' rose photo
Photo courtesy of Rockhill
Synonyms:
• "Penrose"
HMF Ratings:
6 favorite votes.  
ARS:
Orange blend Hybrid Tea, Cl..
Registration name: Indian Summer (climbing hybrid tea, Duehrsen, 1937)
Exhibition name: Indian Summer
Origin:
Bred by Carl G. Duehrsen (United States, 1937).
Introduced in United States by Howard & Smith in 1938 as 'Indian Summer'.
Introduced in Australia by Hazlewood Bros. Pty. Ltd. in 1939 as 'Indian Summer'.
Class:
Hybrid Tea, Cl..  
Bloom:
Orange, salmon-pink streaks, stripes, flecks.  Red-orange and buff.  Mild fragrance.  20 to 30 petals.  Average diameter 5".  Large, double (17-25 petals), borne mostly solitary, cupped bloom form.  Blooms in flushes throughout the season.  
Habit:
Tall, climbing.  Small, glossy, dark green, leathery foliage.  

Height: 12' to 18' (365 to 550cm).  
Growing:
Disease susceptibility: very mildew resistant.  
Patents:
United States - Patent No: PP 448  on  11 Feb 1941   VIEW USPTO PATENT
Parentage:
Ednah Thomas × Autumn
Notes:
Refer references and comments for more on the breeder of 'Indian Summer'

"Penrose" is the study name given to a climbing Hybrid Tea rose found by Penny Hooper when she and her family bought their home, 'Penrose', near the Swan River in Guildford, Western Australia. "Penrose" matches the detailed description in Frederick H. Howard's patent application for 'Indian Summer'. After Hillary Merrifield suggested 'Indian Summer' as a possible identity for "Penrose", it was discovered that there are named plants of 'Indian Summer' extant in Perth and when compared, the two roses were found to be identical.