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PlantFiles: Grandiflora Rose
Rosa 'Janice Kellogg'

 
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Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Janice Kellogg
Hybridized by Meilland; Year of Registration or Introduction: 2006

» View all varieties of Roses

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

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

Spacing:
24-36 in. (60-90 cm)

Hardiness:
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:
Medium red (mr)
Red blend (rb)

Bloom Shape:
Double

Flower Fragrance:
Slightly Fragrant

Bloom Time:
Blooms repeatedly

Habit:
Bush

Patent Information:
Unknown - Tell us

Other Details:
Unknown - Tell us

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

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Propagation Methods:
From softwood cuttings
From semi-hardwood cuttings
By grafting

Click thumbnail
to view:

By Calif_Sue
Thumbnail #1 of Rosa  by Calif_Sue

By redzone911
Thumbnail #2 of Rosa  by redzone911

By DaylilySLP
Thumbnail #3 of Rosa  by DaylilySLP

By DaylilySLP
Thumbnail #4 of Rosa  by DaylilySLP

Profile:

1 positive
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorComment
Positive monniemon On Apr 8, 2011, monniemon from Lansdale, PA wrote:

Janice Kellog is a beautiful rose. It is and olden day rose with many petals in a rounded form. The stems seem to be a little weak at first and you do get the nobbing heads as the plant struggles to hold onto the huge rose. But as the plant gets older it puts out very strong tall straight canes that are able to hold the flower without nobbing the heads. I have not notice a scent, however it is such a beauty i now have 2 in my garden. This rose is hardy to zone 6 with just mulch protection for winter.

Neutral Mr_LeFleur On Oct 21, 2009, Mr_LeFleur from Bothell, WA wrote:

Pretty flower form, but the stems are too weak to hold the massive blooms upright.

Regional...

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

Belleair Bluffs, Florida
Lansdale, Pennsylvania
Bothell, Washington



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