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PlantFiles: Grandiflora Rose
Rosa 'Scarlet Knight'

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Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Scarlet Knight
Additional cultivar information: (aka Samourai, MEIelec)
Hybridized by Meilland; Year of Registration or Introduction: 1966

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Class:
Cluster-flowered (incl. Floribunda & Grandiflora)

Height:
36-48 in. (90-120 cm)

Spacing:
Unknown - Tell us

Hardiness:
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Bloom Color:
Medium red (mr)

Bloom Shape:
Double
Tea shaped

Flower Fragrance:
Slightly Fragrant

Bloom Time:
Blooms repeatedly

Habit:
Shrub

Patent Information:
Non-patented

Other Details:
Unknown - Tell us

Pruning Instructions:
Blooms on new wood; prune early to promote new growth

Soil pH requirements:
Unknown - Tell us

Propagation Methods:
From herbaceous stem cuttings
From woody stem cuttings
From softwood cuttings
From semi-hardwood cuttings
From hardwood cuttings
By grafting
By budding
By simple layering
By air layering
By tip layering

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to view:

By Pianolady2
Thumbnail #1 of Rosa  by Pianolady2

By ceja
Thumbnail #2 of Rosa  by ceja

Profile:

1 positive
1 neutral
1 negative

Gardeners' Notes:

RatingAuthorContent
Negative Hamchuk On Dec 11, 2010, Hamchuk from Weaverville, NC (Zone 6b) wrote:

ATL - 7B. I bought this plant bare root from a big box retailer, and I have to say that while the blooms are beautiful, red with a blue tint, they have not fared well here in our full sun large container garden. The black spot, the aphids, the japanese beetles have all taken their toll, and they usually look, honestly, absolutely dreadful. My husband and I try to garden using environmentally-gentle methods, and despite weekly neem oil treatments and a nearby beetle bag this rose has consistently looked more dead than alive.

I purchased two at the same time, and decided to plant the second one at our community garden, where it received even less care than here at home. It appeared to die off in the fall from the accumulated neglect, but now that the bugs are gone it is suddenly putting out fresh new leaves at the base. Honestly I don't know what to do with them at this point.

Positive Leehallfae On May 9, 2009, Leehallfae from Seattle, WA wrote:

Scarlet Knight: Spacing, about 18 to 30 inches apart. Average size is 4 feet by 4 feet, and cold hardiness is -10F to -20F. Plant in full sun, where it will receive at least 6 hours of direct sunlight Daylight Savings Time.

Neutral Paulwhwest On Oct 11, 2004, Paulwhwest from Irving (Dallas area), TX (Zone 8a) wrote:

Bred in France. Won the All-America Rose Selection in 1968, the Madrid Gold Medal in 1966, and the Court of Show Honor in 1999.

Parentage:
Seed: Happiness Independence
Pollen: Sutter's Gold

Regional...

This plant has been said to grow in the following regions:

Atlanta, Georgia
Protection, Kansas
Knoxville, Tennessee
Gilmer, Texas
North Bend, Washington
Seattle, Washington



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