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) 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: Full Sun
Danger: Handling plant may cause skin irritation or allergic reaction
Bloom Color: Pale Yellow
Bloom Time: Mid Summer Late Summer/Early Fall Mid Fall
Foliage: Herbaceous Silver/Gray
Other details: This plant is attractive to bees, butterflies and/or birds Drought-tolerant; suitable for xeriscaping
Soil pH requirements: 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral)
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
On Aug 14, 2012, ms_greenjeans from Hopkins, MN (Zone 4a) wrote:
This plant is very much like 'Moonshine', but the flower color is a pale yellow as opposed to a brighter yellow and it's a bit hard to find. It's about the same size, growth habit, and everything else. I like 'Moonshine' if I need something bright to stand out, and I prefer this one if I want a softer color.
On Mar 19, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:
Med. 30" - Plant 16" apart. zone 4-8. Pale yellow fading to a creamy yellow and new 3" clusters constantly coming on. Long blooming, and when the flowers fade, the plants can be cut back by half encouraging another period of bloom. Silver foliage stays attractive in all weather. Named for the daughter of Allan Bloom.
I have found Yarrow drought tolerant and cold tolerant as well. I live in Northern Maine, and my Yarrow gets better each year. The snow cover (from late November to Mid-April) does a great job insulating my plants. I dry the flowers to use on wreaths. At this time I have several colors, from a deep yellow to medium pink to white and pale pinks. I understand there is a red Yarrow, but I have not been fortunate enough to find it.
This plant has been said to grow in the following regions:
Clayton, California Brighton, Colorado Topsfield, Massachusetts Fennville, Michigan Troy, Michigan Hopkins, Minnesota Statesville, North Carolina Pittman Center, Tennessee