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perennial

Star Of Billion Masterwort

Astrantia major 'Star Of Billion'

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Star Of Billion Masterwort (Astrantia major 'Star Of Billion') at Squak Mountain Nursery

Star Of Billion Masterwort flowers

Star Of Billion Masterwort flowers

(Photo courtesy of NetPS Plant Finder)

Height:  24 inches

Spacing:  18 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  3

Other Names:  Hattie's Pincushion

Description:

Starry white pincushion flowers on rising stems; great on streambanks or in a moist border, doesn't like to dry out; cut back after flowering for a second flush

Ornamental Features

Star Of Billion Masterwort features airy cymes of white pincushion flowers rising above the foliage from early to late summer. The flowers are excellent for cutting. Its crinkled ferny pinnately compound leaves remain dark green in color throughout the season.

Landscape Attributes

Star Of Billion Masterwort is an open herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Self-Seeding

Star Of Billion Masterwort is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Bog Gardens

Planting & Growing

Star Of Billion Masterwort will grow to be about 20 inches tall at maturity, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 15 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

This plant does best in full sun to partial shade. It is quite adaptable, prefering to grow in average to wet conditions, and will even tolerate some standing water. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This is a selected variety of a species not originally from North America. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Garden  Bog 
Applications
Flowers  Texture 
Ornamental Features

Disclaimer - This Plant Finder tool is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact the store directly for availability. It does not include our entire inventory of plants, so be sure to visit our store to see varieties that may not be represented on this list.