Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Achillea (ak-ih-LEE-a) (Info)
Species: borealis (bor-ee-AL-is) (Info)
Synonym:Achillea millefolium var. borealis
 One member has or wants this plant for trade.
Category:
Alpines and Rock Gardens
Perennials
Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing:
6-9 in. (15-22 cm)
Hardiness:
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
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)
Sun Exposure:
Full Sun
Danger:
N/A
Bloom Color:
White/Near White
Bloom Time:
Mid Summer
Late Summer/Early Fall
Foliage:
Herbaceous
Silver/Gray
Aromatic
Velvet/Fuzzy-Textured
Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
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
From seed; direct sow outdoors in fall
Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
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