Achillea Seed ( Perennial )
Sow indoors 8-10 weeks before planting out, so around mid-March on the coast. Transplant or direct sow in early spring or early autumn. Optimal soil temperature for germination: 60-65. Seeds can take 10 to as long as 100 days to sprout. Bottom heat speeds germination.
Starting Seeds: Sow on the surface of the soil, under bright lights if starting indoors. Transplants can go out while the soil is still cool and there is still some risk of light frost. Space transplants at 30-60cm (12-24") apart.
Growing Plants: Yarrow is a tough plant that is suitable for xeriscaping, and it will adapt to pretty much any soil. For best results, grow in a loamy, well drained soil with a pH of 5.5 to 7.0. Divide plants every 3-4 years. Cut plants to ground level in autumn.
Nice video on growing Achillea
2985 Gold Coin ( Achillea coarctaca )
Dwarf form of Parkers or Cloth of Gold, more shade resistant,
long bloomer. Grows 15" tall, hardy to zone 3. Perennial.
2989 The Pearl Superior ( Achillea ptarmica )
Double, star white, long bloomer. Easy to grow, 90 days to
flower. Grows 30" tall, hardy to zone 3. Perennial.
2990 Ferny ( Achillea aurea )
Fernlike, wooly, fragrant foliage distinguishes this lovely
drought tolerant garden staple, gold flowers. Grows only 8"
tall, hardy to zone 4. Perennial.
RHC445 Achillea Cassis ( A. millefolium )
Fleuroselect, will flower first year, prolific stems and deep
cerise red flower umbels, for garden or cut flowers, grows 25"
tall, hardy to zone 4.
RHC200 Achillea Colorado
Excellent perennial cutflower and container plant. A diverse
mixture of darker hues from red to pink to apricot colored
flowers, including yellow, light yellow, beige tones and a few
whites. Ferny foliage. Always easy, drought tolerant. Grows 24
inches tall, hardy for zones 3 and up.
RHC201 Achillea Moonwalker
Bright yellow flower heads are 5-6 inches wide and are atop 24
to 30 inch tall stems. Great cut flowers and a nice display in
the garden too. Fragrant foliage and flowers. Will flower the
same year sown if done early. Surface sow, light needed for
best germination. Seven days at 70F. Perennial. Zones 6 and