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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) 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) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Bloom Time: Late Spring/Early Summer Mid Summer Late Summer/Early Fall
Foliage: Herbaceous
Other details: This plant is attractive to bees, butterflies and/or birds Drought-tolerant; suitable for xeriscaping Average Water Needs; Water regularly; do not overwater Self-sows freely; deadhead if you do not want volunteer seedlings next season This plant is resistant to deer
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Propagation Methods: By dividing the rootball From seed; winter sow in vented containers, coldframe or unheated greenhouse From seed; sow indoors before last frost From seed; direct sow after last frost
Seed Collecting: Allow seedheads to dry on plants; remove and collect seeds Properly cleaned, seed can be successfully stored
On Jul 21, 2007, INPatrice from Carmel, IN (Zone 5b) wrote:
The Yarrow is growing well and develops wonderful tall flowers stalks that lay on the ground! How do I get them to stand erect. I keep on the dry side (as watering does not help), in composted clay, have not fertilized, and get about 2/3 day full sun.
On Dec 22, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:
This plant is tolerant of most soil types but enjoys full sun. This is one of the most drought tolerant types. It will eventually form a large clump with bright yellow flowers. Varieties such as 'Gold Plate' and 'Parkers Variety' fall under this species. It is native to the Caucasus and bears brilliant, deep yellow flowers over a long summer season. The flat rounded flowerheads can get up to 6". Foliage is bright green and aromatic.
For use as a dried flower: flowers must be cut in full bloom but should feel "firm" to the touch. If harvested too early, will tend to wilt and won't look nice, harvested too late, will turn brown and less attractive. Air dry upside down.
On Nov 23, 2000, poppysue from Westbrook, ME (Zone 5a) wrote:
This is the tallest of the achillea species hardy in zones 3-10. It can reach up to 4 feet tall and may need staking in windy areas. Fern-leaf yarrow remains in a well-behaved clump and it's not an aggressive spreader like many of its cousins. The flat flower clusters are up to 4 inches wide and come in many shades of gold and yellow. They make excellent dried flowers and they’re also attractive to butterflies and beneficial insects. It prefers full sun and well-drained soil to perform its bests.
Regional...
This plant has been said to grow in the following regions:
Lochbuie, Colorado Chicago, Illinois Washington, Illinois Wheaton, Illinois Carmel, Indiana Seymour, Indiana Mathiston, Mississippi Dover, New Hampshire Rutherfordton, North Carolina Kalama, Washington
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