Data specific to Roses (Edit)
Bloom size: Medium: 2-3"
Petal count: double: 16-25 petals
Rose bloom color: Medium red
Extra Bloom Info: In clusters
Rebloom: Good
Class: Hybrid musk
Growth Habit: Tall, 6-8 feet, bushy
Fragrance: Moderate
Hybridizer & year: Wilhelm J.H. Kordes II, 1934
Optimal growing zones: USDA zone 6 and warmer

General Plant Information (Edit)
Plant Habit: Shrub
Life cycle: Perennial
Sun Requirements: Full Sun
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Plant Height: 6-8 feet
Plant Spread: 3-4 feet
Leaves: Deciduous
Flowers: Showy
Fragrant
Flower Color: Red
Flower Time: Spring
Summer
Fall
Uses: Cut Flower
Wildlife Attractant: Bees
Propagation: Seeds: Will not come true from seed
Propagation: Other methods: Cuttings: Stem
Cuttings: Tip
Miscellaneous: With thorns/spines/prickles/teeth
Parentage: Robin Hood x J.C. Thornton
Child plants: 3 child plants

Image
Alternative cultivar names:
  • 'Skyrocket'
  • 'Wilhelm'

Common names
  • Rose

Photo Gallery

Date: 2007-09-19
Photo courtesy of: A. Barra

San Jose Heritage Rose Garden, CA.
Location: In my Northern California garden
Date: Jun 13, 2011
Location: In my Northern California garden
Date: Jun 13, 2011

Date: 2009-10-30
Photo courtesy Antique Rose Emporium. Used with permission.
Location: San Jose Heritage Rose Garden
Date: 2008-05-20
Location: San Jose Heritage Rose Garden
Date: 2008-05-20
Location: San Jose Heritage Rose Garden
Date: 2008-05-20
Location: Rosarium Uetersen
Date: 2008-07-07
Photo courtesy of: Huhu
Comments:
  • Posted by zuzu (Northern California - Zone 9a) on Sep 29, 2011 5:14 PM concerning plant:
    This wonderful rose reblooms reliably in the shade. The canes are pliable and easy to train on a pillar or arbor.
  • Posted by Calif_Sue (Sebastopol, CA - Zone 9a) on Feb 11, 2013 9:34 PM concerning plant:
    Noted by Antique Rose Emporium:
    "‘Skyrocket’, known as ‘Wilhelm’ by European rose growers, is a vigorous grower with a versatile growth habit as a climber or open bush. The semi-double, red flowers are slightly scented and extremely striking by the presence of yellow stamens. This rose is often mistaken for ‘Will Scarlet’ due to the same growth habit and flower form. However, the color is slightly more cherry red. If grown as a climber, this rose will reach 10 to 12 feet."

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