= Water twice per month or less, once established.
= Water about once per week, once established.
= Water about twice per week, once established.
= Water three days per week, or more.
Use the plant water needs as a guideline. Actual plant water needs will vary for several reasons, including weather conditions, soil type, sun exposure, root depth, wind and elevation. Adjust your watering schedule as needed to meet the plants' needs at your site. Water recent transplants more often than established plants.
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Achillea ageratifolia subsp. serbica
low
white
May to June
4 to 8 in.
12 to 15 in.
No
Greece and Bulgaria
sun
USDA zones 4-9
hardy to 8,000 ft.
Serbian yarrow is a dainty-looking plant, but is tough as nails.
It grows as a tidy mounding cushion of toothed, silver-grey leaves. In late spring to early summer, small white flowers grow on top of erect stalks.
Since it's a small mounding plant, it works well in rock gardens and small spaces. Serbian yarrow is well suited to hot, sunny locations.
Serbian yarrow has been an impressive performer at the Cottonwood Creek Xeriscape Garden. It is planted in the central rock garden.
It has thrived, regardless of drought conditions. It has a tidy, uniform appearance and attractive flowers.
Remove spent flowers and stalks after blooming so the pretty silver leaves are visible.
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