Astrantia, Great Masterwort 'Roma'

Astrantia major

Family: Apiaceae (ay-pee-AY-see-ee) (Info)
Genus: Astrantia (ast-ran-tee-a) (Info)
Species: major (MAY-jor) (Info)
Cultivar: Roma
Additional cultivar information:(PP11470)
Hybridized by Geerlings
Registered or introduced: 1998

Category:

Perennials

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade

Foliage:

Herbaceous

Textured

Foliage Color:

Unknown - Tell us

Height:

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Spacing:

12-15 in. (30-38 cm)

15-18 in. (38-45 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)

Where to Grow:

Grow outdoors year-round in hardiness zone

Can be grown as an annual

Danger:

N/A

Bloom Color:

Pink

Rose/Mauve

Bloom Characteristics:

Flowers are good for cutting

Flowers are good for drying and preserving

This plant is attractive to bees, butterflies and/or birds

Bloom Size:

Unknown - Tell us

Bloom Time:

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Blooms repeatedly

Other details:

Unknown - Tell us

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:

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 is said to grow outdoors in the following regions:

Haviland, Ohio

Collierville, Tennessee

Gardeners' Notes:

1
positive
1
neutral
0
negatives
RatingContent
Positive

On May 7, 2021, JennysGarden_TN from Collierville, TN wrote:

It's now blooming in my zone 7b shade garden. Love the dainty blooms!

Neutral

On Feb 8, 2015, coriaceous from ROSLINDALE, MA wrote:

Flowers are a muted rose/pink. This cultivar is sterile, which makes it exceptionally valuable---the species self-sows prodigiously.

Hardy Z4-7 in eastern N. America. This species does not tolerate hot humid summers in which the night temperatures often remain above 70F, as in the southeastern US.

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