Dwarf yarrow

Dwarf yarrow (Achillea nana) is a perennial herbaceous plant belonging to the Asteraceae family. Known for its compact habit and resilience, this species has evolved specifically to thrive in the harsh environments of high-altitude alpine regions.

The plant originates from the mountainous regions of Europe, specifically the Alps and the Pyrenees. Its native habitat consists of rocky screes, crevices, and sparse mountain meadows, where it occupies niches characterized by thin soils, high sun exposure, and significant temperature fluctuations between day and night.

Botanically, dwarf yarrow is distinguished by its low-growing, mat-forming habit and dense silver-grey pubescence covering its leaves and stems. This physical structure serves as a protection mechanism against water loss and intense solar radiation at high altitudes. The flowers are typically white or pale yellow, arranged in small, dense heads on short stalks that rarely exceed 15 centimeters in height.

Successful cultivation requires soil conditions that mimic its natural habitat: sandy, stony, or rocky soils with excellent drainage and a neutral to slightly alkaline pH. The plant performs best in full sun and is highly intolerant of waterlogged soils, which often lead to root rot. As an alpine specialist, it requires very little fertilization; excess nutrients can compromise its compact growth form and reduce its essential oil production.

The economic value of dwarf yarrow is primarily derived from its medicinal and ornamental uses. Pharmaceutically, it is valued for its anti-inflammatory, digestive, and antiseptic properties due to its rich composition of essential oils and flavonoids. In professional horticulture, it is highly sought after for rock gardens, gravel beds, and green roof projects where maintenance must be kept to a minimum.

• Excellent cold hardiness.
• Requires well-drained, gritty substrates.
• Natural drought tolerance.
• Distinctive silver foliage color.
• High concentration of bioactive compounds.