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PlantFiles: Hybrid Rugosa Rose
Rosa 'Frau Dagmar Hastrup'

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Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Frau Dagmar Hastrup
Additional cultivar information: (aka Frau Dagmar Hartopp)
Hybridized by Hastrup; Year of Registration or Introduction: 1914

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4 members have or want this plant for trade.

Class:
Hybrid Rugosa

Height:
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Spacing:
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)

Hardiness:
USDA Zone 3a: to -39.9 C (-40 F)
USDA Zone 3b: to -37.2 C (-35 F)
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)
USDA Zone 10a: to -1.1 C (30 F)

Bloom Color:
Medium pink (mp)

Bloom Shape:
Single
Cupped

Flower Fragrance:
Slightly Fragrant

Bloom Time:
Late Spring/Early Summer
Blooms repeatedly

Habit:
Bush

Patent Information:
Non-patented

Other Details:
Shade-tolerant
Salt-tolerant
Resistant to black spot
Resistant to mildew
Resistant to rust
Susceptible to black spot
Susceptible to mildew
Susceptible to rust
Stems are very thorny
Sets hips

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

Soil pH requirements:
Unknown - Tell us

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

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By kennedyh
Thumbnail #1 of Rosa  by kennedyh

By rebecca101
Thumbnail #2 of Rosa  by rebecca101

By GardenGuyKin
Thumbnail #3 of Rosa  by GardenGuyKin

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There are a total of 10 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive coriaceous On Sep 27, 2014, coriaceous from ROSLINDALE, MA wrote:

This rose's most valuable quality is its dwarf habit. It's one rugosa that doesn't get much over 3' tall, unlike the others that can easily get to 6' or more.

The clear silvery-pink color is also unusual for a rugosa, which commonly have more blue in the color.

It blooms continuously through the season. Like most selections of Rosa rugosa, it has a strong clove/old rose fragrance. The hips are large and showy---tastiest when softened by frost, and excellent for making rose hip jelly or syrup (high in Vitamin C). It also develops excellent yellow-to-red fall color, at least in my climate.

Like other R. rugosa selections, it spreads indefinitely---and often aggressively---by suckering when it's grown on its own roots.

It has good resistance to black spot here. Also like other rugosas, it will quickly defoliate when sprayed with anything but water.

"Frau" is a mis-spelling---the correct Danish word is "Fru". I'm sure the Hastrups, like most Danes, would have been horrified to be mistaken for Germans by posterity:

"This rose was a chance seedling found in 1914 in a field of Rosa rugosa at the Hastrup nursery in Vanloese near Copenhagen, Denmark by the owner, Knud Julianus Hastrup. His wife was called Dagmar Henriette Vilhelmine and I think it most probable that her husband named the rose for her. It has been grown under the name 'Dagmar Hastrup' (we never bother with the Fru) ever since 1914 in all the Scandinavian countries." http://www.helpmefind.com/rose/pl.php?n=10698&tab=32

The registration and exhibition name is 'Dagmar Hastrup'.

Regional...

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

Jonesville, Virginia
Anacortes, Washington
Kirkland, Washington
Racine, Wisconsin



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