Hybrid Rugosa Rose
Rosa 'Grootendorst Supreme'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Grootendorst Supreme
Additional cultivar information:(aka F.J. Grootendorst Supreme)
Hybridized by Grootendorst
Registered or introduced: 1936
» View all varieties of Roses

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

Regional

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

Norristown, Pennsylvania

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

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'