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Great Masterwort
Astrantia major 'Rubra'

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

Category:

Perennials

Height:

18-24 in. (45-60 cm)

Spacing:

18-24 in. (45-60 cm)

Hardiness:

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

Danger:

N/A

Bloom Color:

Scarlet (Dark Red)

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall

Blooms repeatedly

Foliage:

Herbaceous

Smooth-Textured

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:

Non-patented

Propagation Methods:

By dividing the rootball

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Regional

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

Portland, Oregon

Gardeners' Notes:

0
positives
0
neutrals
1
negative
RatingContent
Negative

On Aug 29, 2011, SkyeGirl from Beavercreek, OR wrote:

These are very invasive, spreading by seed.