Achillea tomentosa – Woolly Yarrow.
Perennial. Zone 3. Asteraceae. Central Europe, namely France, Italy and Spain. Tomentosa = Latin term meaning “covered with hairs”, referring to the dense silver hairs covering the leaves and stems of this species.
This tends to be one of those quietly ignored species. It is not showy or particularly exciting, but it is completely charming, especially in spring, when its freshly-emerged woolly rosettes are truly beautifully, especially when misted with tiny drops of morning dew.
After emergence of the ferny, fuzzy foliage rosettes, densely furred bud clusters emerge in May, opening up into corymbes of clear yellow flowers on 6 inch tall stems. These bloom through June and into July. The bright yellow tarnishes as the clusters fade, and the plants can then be shorn of bloom stalks, which, quite frankly, look rather tatty once flowering is finished.
The foliage and flowers are warmly aromatic when touched.
Achillea tomentosa is well suited to rockery or border edging, and thrives on well drained soil. It is very drought tolerant once established, and is a good xeriscape plant. It spreads to a foot or so in diameter, and makes a good cover plant over small bulbs such as crocus or species tulips, or early spring-blooming alliums.
The main named variety found under the name Achillea tomentosa is ‘Maynard’s Gold’, also listed as ‘Aurea’.
There is another tomentosa-connected cultivar, ‘King Edward’, a hybrid cross (Achillea x lewisii), which is taller, with soft sulphur yellow flowers.
Sun, average soil, good drainage.
Achillea tomentosa – newly emerged foliage rosettes.
