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Products > Achillea 'Moonshine'   Achillea 'Moonshine' - Fern Leaf Yarrow     [2nd Image] Habit and Cultural Information Category: Perennial Family: Asteraceae (Sunflowers) Origin: Garden Origin Flower Color: Yellow Bloomtime: Spring/Summer Parentage: (A. clypeolata x A. 'Taygetea') Height: 1-2 feet Width: 2-3 feet Exposure: Full Sun Summer Dry: Yes Deer Tolerant: Yes Irrigation (H2O Info): Low Water Needs Winter Hardiness: < 0 °F Achillea 'Moonshine' (Fern Leaf Yarrow) – A herbaceous perennial forms 18 to 24 inch wide clumps of finely dissected gray-green foliage. In late spring through summer the lemon yellow flower heads rise on straight stalks 18 to 24 inches above the foliage - in mild coastal California the flowers are often present from mid spring until October. Dehead flowers to promote prolonged flowering and cut back to basal foliage in fall to tidy up the plant. This plant thrives in full sun, with reasonable drainage and moderate to occasional summer water. Hardy to below 0 degrees F (to USDA zone 3). This is one of the best garden perennials and is great for cut flowers, either fresh or dried and a good nectar source for butterflies. This old favorite is considered to be a hybrid between Achillea clypeolata and A. 'Taygetea' (an old illegitimate name that possibly refers to A. taygetea which is a synonym for A. aegyptiaca) and was introduced by Alan Bloom in the 1950's. We have grown 'Moonshine' since 1988 and feel it is one of the best and most durable of the Yarrow. This plant received the Royal Horticultural Society's Award of Garden Merit in 1993.  The information on this page is based on the research that we have conducted about this plant in the San Marcos Growers library, from what we have found on reliable online sources, as well as from observations made of our crops of this plant growing in the nursery and of plants growing in the nursery's garden and those in other gardens where we may have observed it. We also have incorporated comments received from others and welcome getting feedback from those who may have additional information, particularly if this information includes cultural information that would aid others in growing Achillea 'Moonshine'.