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All ratings refer to the UK growing conditions unless otherwise stated. Minimum
temperature ranges (in degrees C) are shown in brackets
AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
A. bulbiferum is a tufted evergreen fern to 75cm, with finely divided light green fronds bearing small plantlets on the upper surface
A. scolopendrium is an evergreen fern forming a rosette of arching, rich green, strap-shaped fronds 30-75cm in length, the margins often undulate. Spores borne in conspicuous transverse stripes beneath the fronds
'Golden Queen' is an evergreen fern to 40cm tall forming a rosette of erect- to arching broad fronds with deeply ruffled edges. If this cultivar is grown in sufficient light, fronds will be a rich yellow colour in the spring before darkening to green by late summer
A. nidus is an evergreen fern forming a striking rosette of strap-shaped, undivided, bright green, fronds to 1.2m in length
'Angustatum' is a compact, evergreen fern growing to 45cm tall. Rosette-forming, erect to arching leaves are narrow, glossy, and bright green with ruffled edges
A. trichomanes is a compact evergreen fern forming a rosette of blackish-stemmed, pinnate fronds with small, rounded or oblong segments; well-suited to planting in a dry wall
'Crispum Bolton's Nobile' is an evergreen fern forming a handsome rosette of broad, rich green, strap-like fronds to 30 by 10cm, with strongly undulate margins; sterile
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We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.