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Polyantha, Polyantha Climbing Rose 'Margo Koster'

Rosa

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Family

Rosaceae (ro-ZAY-see-ee)

Info

Genus

Rosa (RO-zuh)

Info

Synonym

Height

Unknown - Tell us

Spacing

24-36 in. (60-90 cm)

Hardiness

24-36 in. (60-90 cm)

Bloom Time

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

Late Spring/Early Summer

Blooms repeatedly

Class

Height

Spacing

Sun Exposure

Danger

Hardiness

Bloom Color

Bloom Time

Foliage

Bloom Time

Bush

Bloom Color

Non-patented

Bloom Time

Class

Bloom Time

Bloom Color

Class

Bloom Color

Bloom Time

Other Details

Propagation Methods

Soil pH requirements

Flower Fragrance

Bloom Shape

Habit

Patent Information

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

Other Details

Unknown - Tell us

Pruning Instructions

Unknown - Tell us

Foliage Color

Unknown - Tell us

Bloom Characteristics

Water Requirements

Where to Grow

Seed Collecting

Fruit Shape

Fruit Size

Fruit Colors

Growing Habit

Days to Maturity

Seed Type

Usage

Disease Resistance

Leaf Type

Foliage Color

Bloom Characteristics

Water Requirements

Where to Grow

Other details

Propagation Methods

Soil pH requirements

No fragrance

Patent Information

Unknown - Tell us

Plant Size (check one)

Growing Habit

Growth Rate

Leaf Shape

Leaf Appearance

Degree to which the appearance is present

Unknown - Tell us

Leaf Texture (top)

Unknown - Tell us

Leaf Texture (bottom)

Leaf Color

Color of Leaf Margin

Leaf Substance

Number of Vein Pairs

Appearance of Margin

Orange and orange blend (ob)

Margin Width

Double

Globular

Flower Shape

Unknown - Tell us

Flower Fragrance

Blooms on new wood; prune early to promote new growth

Does it set seed?

Flower Size

Flower Type

Blooming Habit

Foliage Habit

Ploidy

Color Patterns

Awards (if applicable)

Polyantha

Gardener's Notes:

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positives

neutral

negative

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suguy

Simi Valley, CA (Zone 9a) | December 2011 | positive

Margo Koster is a living ancestor to miniature roses.
Over 80 years old now she's keeping up well with the newcomers.

...Read More

willowwind

Moundridge, KS (Zone 6a) | September 2010 | positive

I had one of these pretty little roses when living in western Kansas, and it put up with everything that harsh environment could give. I...Read More

torachan

Aurora, CO | June 2009 | negative

I have had Margo Koster for five years in a bed that gets mid-morning and afternoon sun. It has not thrived in Colorado despite mulching...Read More

txjamjr

Fort Worth, TX (Zone 8a) | June 2007 | positive

I had one in a very small flower bed, bounded by concrete sidewalk and driveway beside the garage. It got clobbered more than once by th...Read More

Paulwhwest

Irving (Dallas area), TX (Zone 8a) | June 2004 | neutral

Bred in Holland. Won the Polyantha Spray award forty times from 1998-2001.

Sport of 'Dick Koster'

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Polyantha, Polyantha Climbing Rose 'Margo Koster'

Rosa

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