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PlantFiles: Great Masterwort
Astrantia major 'Ruby Cloud'

Family: Apiaceae (ay-pee-AY-see-ee) (Info)
Genus: Astrantia (ast-ran-tee-a) (Info)
Species: major (MAY-jor) (Info)
Cultivar: Ruby Cloud

One vendor has this plant for sale.

10 members have or want this plant for trade.


24-36 in. (60-90 cm)

18-24 in. (45-60 cm)

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)

Sun Exposure:
Sun to Partial Shade


Bloom Color:
Scarlet (Dark Red)

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Blooms repeatedly


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:

Propagation Methods:
By dividing the rootball

Seed Collecting:
Bag seedheads to capture ripening seed
Allow seedheads to dry on plants; remove and collect seeds

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2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive echoes On Feb 12, 2008, echoes from South of Winnipeg, MB (Zone 3a) wrote:

This plant has proven hardy in my zone 3 area. It is reported to come true from seed.

Positive Bellisgirl On Feb 6, 2007, Bellisgirl from Spokane, WA wrote:

Ive had this particular plant for over four years now. I really love it. It has upright steams and unusual leaves. It has masses of lovely dusty pink flowers. Flowers can be used in dried arrangements. I have mine planted in a partial shade area. Likes to be watered regularly when its hot out.


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

Helena, Montana
Norristown, Pennsylvania
Wilkes Barre, Pennsylvania
Chimacum, Washington
North Bend, Washington
Spokane, Washington

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