Photo by Melody

PlantFiles: Great Masterwort
Astrantia major 'Shaggy'

Family: Apiaceae (ay-pee-AY-see-ee) (Info)
Genus: Astrantia (ast-ran-tee-a) (Info)
Species: major (MAY-jor) (Info)
Cultivar: Shaggy
Additional cultivar information: (aka Margery Fish)

Synonym:Astrantia major subsp. involucrata
Synonym:Astrantia major var. involucrata

7 members have or want this plant for trade.


24-36 in. (60-90 cm)

24-36 in. (60-90 cm)

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)

Sun Exposure:
Sun to Partial Shade
Light Shade


Bloom Color:
Pale Pink
Pale Green
White/Near White

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


Other details:
This plant is attractive to bees, butterflies and/or birds
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
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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1 positive
No neutrals
No negatives

Gardeners' Notes:

Positive saya On Jul 10, 2005, saya from Heerlen
Netherlands (Zone 8b) wrote:

Shaggy has a long blooming season and gets a little taller than most other Astrantia (up to 80 cm and sometimes even more). The flowers are 6 to 7 cm. across.
'Shaggy' is sometimes sold as Astrantia major 'Margery Fish' . (Margery Fish - 1888-1969 - was one of the most important influences on English Cottage Gardening of the most admired gardeners and garden writers of her day, after Vita Sackville-West).
Astrantias are very promiscuous and self-seed readily. If you are happy just to have slightly different flowers, leave the last of the flower heads to set seeds, and be patient. It can take an astrantia up to three or even four years from seed sowing to first flowering, and then you will probably find a few more changes each year for the next few years until the plant reaches full maturity. The end result will probably be quite different from the parent plant. It is these self-sown seedlings that are often sold as 'Shaggy'.
And..ohh..slugs hate Astrantia. The astrantias can act as a natural defence. Very usefull if you grow it together with Hosta.


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

Portland, Oregon
Bainbridge Island, Washington
Bellingham, Washington

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