'Semi-double' Rose

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'Semi-double' rose Description

My HMF:

Photo courtesy of jannorcal

Availability:

Commercially available

Synonyms:

• Alba Semi-plena
• Blanche semi-double (alba)
• Bonnie Prince Charlie's Rose
• La Rose de York
• La Rose d'York
• Rosa alba major duplex
• R. alba semi-plena
• Rosa alba var. semi-plena Ser.
• Rosa alba 'White Rose of York'
• Rosa X alba nivea
• Rosa X alba semi-plena
• Rosa X alba suaveolens
• Rose Vierge (alba)
• Semi-plena
• White Rose of York
• York

HMF Ratings:

127 favorite votes.
Average rating: EXCELLENT-.

ARS:

White, near white or white blend Alba.
Registration name: Alba Semi-plena

Origin:

Discovered by Unknown (before 1623).

Class:

Alba.

Bloom:

White, yellow stamens. Strong fragrance. 11 to 22 petals. Average diameter 2.5". Large, semi-double to double, cluster-flowered, in small clusters bloom form. Once-blooming spring or summer. Leafy sepals buds.

Habit:

Arching. Medium, grey-green foliage.

Height: 6' to 9'10" (185 to 300cm). Width: 4' to 5' (120 to 150cm).

Growing:

USDA zone 3b through 9b. Can be used for garden. Produces decorative hips. Remove old canes and dead or diseased wood.. Can be grown as a climber in mild climates. Prune after flowering is finished. This rose blooms on old wood.

Patents:

Patent status unknown (to HelpMeFind).

Ploidy:

Hexaploid

Parentage:

sport of Alba Maxima

Notes:

Rosa alba var. semi-plena Ser. Mél. bot. 1(1):36.1818.
Produces red hips in fall.