Achillea filipendulina, or Yarrow, is a hardy perennial that is a favorite of many gardeners. This variety, Parker, has flattened clusters of yellow flowers that form above grayish-green, fern-like foliage. The flower clusters are long-lasting and can reach 4 inches across.
Yarrow parker is a 3 to 4 foot tall perennial yellow flower growing in USDA zones 3 - 10.
Yarrow makes a great cut flower, and it dries well for use in dried arrangements. To dry, hang the Parker Yarrow upside down in a well-ventilated, dark, dry room.
Start Yarrow 6 - 8 seeds per plant indoors 6 – 8 weeks before the last expected frost date. Press the seed into soil, lightly cover it and keep the seed moist. With a temperature of 68F, germination is usually in 21 days.
Grow Yarrow in full sun. It prefers well-drained soil, and it is usually deer resistant. Space plants 30 inches apart. In areas with long growing season, Yarrow can be directly started outdoors after danger of frost has passed. It takes 90 days from sowing to blooming. Deadheading promotes continual bloom, and the clumps should be divided every 3 – 4 years to keep the plant healthy.