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Floribunda Rose
Rosa 'Margaret Merril'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Margaret Merril
Additional cultivar information:(aka HARkuly)
Hybridized by Harkness
Registered or introduced: 1977
» View all varieties of Roses

Class:

Cluster-flowered (incl. Floribunda & Grandiflora)

Height:

36-48 in. (90-120 cm)

4-6 ft. (1.2-1.8 m)

Spacing:

24-36 in. (60-90 cm)

36-48 in. (90-120 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)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Bloom Color:

White (w)

Bloom Shape:

Double

Tea shaped

Flower Fragrance:

Very Fragrant

Bloom Time:

Late Spring/Early Summer

Blooms repeatedly

Habit:

Shrub

Can be trained as a standard or tree form

Patent Information:

Non-patented

Other Details:

Susceptible to black spot

Susceptible to mildew

Susceptible to rust

Pruning Instructions:

Blooms on new wood; prune early to promote new growth

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

Propagation Methods:

From softwood cuttings

From semi-hardwood cuttings

From hardwood cuttings

By grafting

By budding

Regional

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

,

Washington, Illinois

Wichita, Kansas

Decatur, Mississippi

Brick, New Jersey

Irving, Texas

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Gardeners' Notes:

2
positives
1
neutral
1
negative
RatingContent
Negative

On Jul 18, 2010, AZ_Alkmaar from Westfield, IN wrote:

Very susceptible to black spot in Indiana

Positive

On Aug 13, 2009, baiissatva from Dunedin
New Zealand wrote:

Zone 9b coastal Otago New Zealand

This is a superb white rose and one of the few that have what I would call a truly spectacular fragrance. It is one of my top 5 roses of all time. I planted it badly in clay last year and it's done fine without a moment's attention, flowering most of the way through winter!

Highly recommended.

Neutral

On Nov 7, 2006, Redkarnelian from Newmarket, ON (Zone 5a) wrote:

Also known as "Margarite Merril".

Positive

On Apr 16, 2004, Paulwhwest from Irving (Dallas area), TX (Zone 8a) wrote:

I ordered this rose from Edmunds Roses last spring and so far it has done very well overall however it has had some black spot problems (most roses do in this area), and the flowers seem to be a favorite of pests.

It's parentage is: (Rudolph Timm X Dedication) X Pascali