njoynit hope this helps a little. if you found 1 plant
in the shade,are you sure it's yarrow?
.. Pink, white, red, yellow
LIGHT.. Full sun
WATER.. Drought resistant
SOIL TYPE.. any
USDA Hardiness zones
This perennial plant
is a native to Europe and Asia.The 2"-6" clusters of tiny pink, white, or yellow flowers
form form atop a 6"-4' spike.(depending on the individal species) The foliage is fern like. Achillea is drought resistant, and will grow in almost any soil. The plants
bloom in June, but will bloom again in September if the dead clusters are removed.
Common Yarrow has fern-like foliage and can be used as cut flowers
. The species has pink flowers
but cultivars can provide white or red blooms. They grow in ordinary garden soil and full sun. Cut off old flowers
to prolong the flowering period. Achillea may become a weed
if not controlled. Propagation: Divide in the spring
. The seed
germinates in 2 weeks at temperatures between 65 and 75 degrees. Light is necessary for seed
germination. Germination time indoors may be as little as 5 to 7 days.