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Western Yarrow

Achillea millefolium

Details & Attributes


Plant Type(s) Perennial
Native to Arizona Yes!
Water Needs Moderate-high
Sun Partial shade, shade
Pollinators Butterflies, bees
Has Spines No
Size
In relative feet, width by height
2 × 2
Freeze Tolerant No
Flowering Season June-September
Flower Color White sometimes pink
Minimum Temperature Range -40 °F
Leaf Description Delicately compound, appearing fern-like
Fruit Inconspicuous.
Longevity
In years
5
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Range Map View SEINet Range Map
Elevation Range 5500-11500 ft.
Description Yarrow is an incredibly widespread species, but is primarily found in mountainous habitats in Arizona. This plant spreads by rhizomes (underground stems) and can form large patches in moist soils. In low elevation gardens this plant should be grown in shade but performs surprisingly well if given extra moisture during the hot season.