Hybrid Tea Rose
Rosa 'Red Masterpiece'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Red Masterpiece
Additional cultivar information:(aka JACder)
Hybridized by Warriner
Registered or introduced: 1974
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Class:

Hybrid Tea

Height:

4-6 ft. (1.2-1.8 m)

Spacing:

Unknown - Tell us

Hardiness:

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

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)

Bloom Color:

Dark red (dr)

Bloom Shape:

Tea shaped

Flower Fragrance:

Very Fragrant

Bloom Time:

Late Spring/Early Summer

Blooms repeatedly

Habit:

Shrub

Patent Information:

Unknown - Tell us

Other Details:

Susceptible to mildew

Pruning Instructions:

Blooms on new wood; prune early to promote new growth

Soil pH requirements:

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us

Regional

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

Tucson, Arizona

Fernandina Beach, Florida

Athens, Illinois

Hampton, Illinois

Columbus, Ohio

Knoxville, Tennessee

Brookfield, Wisconsin

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Gardeners' Notes:

0
positives
0
neutrals
1
negative
RatingContent
Negative

On May 11, 2008, plantoid from Castro Valley, CA (Zone 9b) wrote:

buds don't open fully in my area, 9b-10a in Oakland, CA. The partially opened blooms ball up and turn brown. I learned somewhere long ago that this plant requires a lot of heat for the buds to open fully. When the buds did open fully, the flowers were exceptionally pretty, of classic form and a beautiful dark blood red.