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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.
D. erythrosora is a semi-evergreen fern to 75cm, forming a compact clump of broadly ovate, bipinnatifid fronds, often coppery-pink when young. Spore-heaps also often pink
'Lepidota Cristata' is a semi-evergreen fern forming a rosette of crested, tripinnate, triangular-ovate fronds with narrow segments giving a lacy appearance
'Cristata Angustata' is a semi-evergreen fern with rosettes of arching, very narrow fronds, crested at the tips of the pinnae and fronds
'Divisilobum Densum' is a more-or-less evergreen fern forming a rosette of spreading, thin-textured triangular fronds which are 4-pinnate with densely overlapping pinnae giving a mossy appearance, the young fronds with silvery scales
Plumosomultilobum Group are bushy, evergreen ferns with soft, overlapping, often horizontal fronds. Fronds have a very lacy, multi-layered appearance and are divided up to four times with narrow ultimate divisions
D. filix-mas is a robust deciduous fern forming a shuttlecock-like tuft of lance-shaped, bipinnatifid fronds to 1.2m in height
P. tsussimense is a small tufted evergreen fern to 45cm, with erect, narrowly lance-shaped, bipinnate fronds, with slender-pointed apex and pinnae
D. cycadina is a semi-evergreen, rosette-forming fern of neat appearance, the spreading fronds, borne on scaly stalks, simply pinnate with pinnae evenly toothed or lobed
'Herrenhausen' is a semi-evergreen fern. The new foliage uncurls in spring to show long, intricately-divided fronds up to 1m in height
'Crispa Gracilis' is a semi-evergreen fern to 20cm tall, forming a rosette of congested, bipinnate fronds, with overlapping, crisped segments
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