Adiantum x mariesii (Maries's maidenhair Fern) RHS AGM

Adiantum × mairisii – Mairis’ Hardy Maidenhair Fern

Adiantum × mairisii,, is an elegant, deciduous fern with finely divided foliage and remarkable cold tolerance. Fresh, bright green, fan-shaped leaflets are carried on slender, glossy black stems creating a soft, lacy appearance.

Growing approximately 30–45cm tall and 45–60cm wide, this hardy, spreading fern thrives in partial to full shade. It prefers moisture retentive, well-drained soil. Shelter from drying winds.

An excellent choice for woodland gardens, shady borders, fern collections, ground cover and containers, Adiantum × mairisii brings delicate texture to shaded planting. Particularly attractive alongside hostas, epimediums and other shade-loving perennials.

RHS H5 (−15°C to −10°C).

RHS Award of Garden Merit (AGM). Hardy in Irish gardens.

This hybrid was first raised in an English nursery, Mairis' and Co., around 1885.