Shrub Rose, Buck Roses Collection
Rosa 'Golden Unicorn'

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Cultivar: Golden Unicorn
Hybridized by Buck
Registered or introduced: 1985
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Class:

Shrub

Height:

36-48 in. (90-120 cm)

Spacing:

36-48 in. (90-120 cm)

Hardiness:

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)

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

USDA Zone 11: above 4.5 C (40 F)

Bloom Color:

Yellow blend (yb)

Bloom Shape:

Double

Cupped

Flower Fragrance:

Very Fragrant

Bloom Time:

Late Spring/Early Summer

Blooms repeatedly

Habit:

Shrub

Patent Information:

Non-patented

Other Details:

Resistant to black spot

Resistant to mildew

Resistant to rust

Stems are moderately thorny

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

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us

Regional

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

Iowa City, Iowa

West Monroe, Louisiana

Lenoir City, Tennessee

Casco, Wisconsin

Gardeners' Notes:

2
positives
1
neutral
0
negatives
RatingContent
Positive

On Feb 3, 2013, GingerGaia from West Monroe, LA (Zone 8a) wrote:

I planted this 4 yrs ago in a pot that was placed in a bed. Then I was bed bound 4 yrs. So no feeding, pruning or weeding and had a shrub that grew out over part of it. I was plrased to find it leafing out with lots of green stems today, as I am finally well enough to garden again. What a tough rose !

Positive

On Dec 17, 2010, tgwWhale from Casco, WI wrote:

I bought a Golden Unicorn because it was advertised as "hardy" in a seed catalog. It is not as hardy as adverised -- I get it through the winter in my location (NE Wisconsin, zone 5) by boxing it up and burying it in ground, just as I get hybrid teas through the winter. It is more hardy than any hybrid tea I have found, though, and a lot more of the plant survives the winter if boxed and buried.

The bloom itself is glorious. The first flush of blooms in June is very heavy, and the rebloom is good. The flowers are fragrant and you can get a good whiff of the plant just walking by it. The color is richer in cooler weather, and lasts longer, so any blooms that come in the fall tend to be prettier than the summer blooms.

The flower fades and the petals drop v... read more

Neutral

On Jun 13, 2004, Paulwhwest from Irving (Dallas area), TX (Zone 8a) wrote:

Bred in United States.

Parentage:
Seed: Paloma Blanca
Pollen: Carefree Beauty x Antike