'RSM J4' Rose

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'RSM J4' rose Description

My HMF:

Photo courtesy of Maritta

Availability:

Commercially available

Synonyms:

• 74E0E403
• Morden Cardinette

HMF Ratings:

26 favorite votes.
Average rating: FAIR.

Origin:

Bred by Henry H. Marshall (Canada, 1974).

Class:

Shrub. (Series: Parkland Series Collection)

Bloom:

Red. Flowers cardinal red. Mild fragrance. 25 petals. Double (17-25 petals), borne mostly solitary, cluster-flowered, in large clusters, cupped bloom form. Occasional repeat later in the season. Ovoid buds.

Habit:

Medium, spreading. Dark green foliage. 7 leaflets.

Growing:

USDA zone 3b and warmer. Can be used for beds and borders, cut flower or garden.

Patents:

Patent status unknown (to HelpMeFind).

Parentage:

RSM E0 × RSM E4

Notes:

complex hyb. of ‘Prairie Princess, ‘White Bouquet’, ‘Assiniboine’, R. arkansana (seed parent side) plus: ‘Adelaide Hoodless’, ‘Independence’, ‘Donald Prior’ and R. arkansana (pollen parent side)

Probably triploid