HelpMeFind Roses, Clematis and Peonies
Roses, Clematis and Peonies
and everything gardening related.
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'Ja0' Description
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'Ja0' rose photo
Photo courtesy of styrax
Availability:
Believed extinct or lost
Synonyms:
Origin:
Bred by J.... G... (United States).
Class:
Hybrid Multiflora, Shrub, Species Cross, Understock.  
Bloom:
Light pink, coral-pink edges.  ..  Moderate, apple, fruity fragrance.  Average diameter 0.75".  Small, single (4-8 petals), in large clusters, flat, open bloom form.  Prolific, once-blooming spring or summer.  Small, glandular sepals, fragrant buds.  
Habit:
Tall, arching, armed with thorns / prickles, climbing, lax.  Medium, semi-glossy, dark green, fringed stipules, wrinkled (rugose) foliage.  5 to 7 leaflets.  

Height: up to 15' (up to 455cm).  Width: 4' to 6' (120 to 185cm).
Growing:
Can be used for understock.  Very vigorous.  Blooms tend to ball in wet weather.  can be trained as a climber.  plant in partial shade for best color.  produces decorative hips.  shade tolerant.  Disease susceptibility: very disease resistant, very blackspot resistant., very mildew resistant, susceptible to rust .  Remove old canes and dead or diseased wood..  This rose blooms on old wood.  
Breeder's notes:
It sprouted from where I threw some leftover Knock Out OP hips. Almost completely sterile.
Patents:
Patent status unknown (to HelpMeFind).
Ploidy:
Triploid
Notes:
Discarded due to RRV
 
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