Photo by Melody

PlantFiles: Hybrid Rugosa Rose
Rosa 'Grootendorst Supreme'

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Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Grootendorst Supreme
Hybridized by Grootendorst; Year of Registration or Introduction: 1936

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Class:
Hybrid Rugosa

Height:
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing:
4-6 ft. (1.2-1.8 m)

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:
Semi-double

Flower Fragrance:
No fragrance

Bloom Time:
Late Spring/Early Summer
Blooms repeatedly

Habit:
Bush

Patent Information:
Non-patented

Other Details:
Stems are very thorny

Pruning Instructions:
Unknown - Tell us

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

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

Click thumbnail
to view:

By rebecca101
Thumbnail #1 of Rosa  by rebecca101

By rebecca101
Thumbnail #2 of Rosa  by rebecca101

Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Paulwhwest On May 31, 2004, Paulwhwest from Irving (Dallas area), TX (Zone 8a) wrote:

Bred in Netherlands. Won the Classic Shrub Rose award from the San Joaquin Valley Rose Society in 2001, and the Victorian award from the Greater Cincinnati Rose Society in 2000.

Sport of 'F.J. Grootendorst'

Regional...

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

Norristown, Pennsylvania



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