PlantFiles is getting a new look! Just in time for spring, we're rolling out a new look for the best online plants database. It will also work with your smart phones and mobile devices, so now you can take it with you on garden center visits or botanical garden tours. Questions or comments? Please post them here.

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
» View all varieties of Roses

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

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

show all

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.