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We have combined these two powerful search tools into a single Find a Plant service searching over 250,000 plant records.
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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.
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Other common names
hart's tongue fern burnt weed
buttonhole Christ's hair horse tongue
Asplenium are evergreen ferns with short, usually erect rhizomes bearing a rosette of slightly leathery fronds which may be simple, pinnate to 3-pinnate
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
Temp. N. Hemis.
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
Aspect South-facing or North-facing or West-facing or East-facing
Exposure Exposed or Sheltered
MoistureMoist but well-drained
SoilLoam, Chalk, Sand, Clay
Time to ultimate height
Grows well in humus-rich, moist but well-drained soil. Bright mid-day sun can cause damage. May be sensitive to fungicides.Tolerant of dry shade but water regularly during the first season and mulch well
Propagate by sowing spores in mid to late summer or by division in spring. Peeled leaf bases can be taken off from where the stem joins with the root. Old leaf bases that are green at the base are incubated in a plastic bag of loam based media. Green swellings can be found and potted to raise new plants
Suggested planting locations and garden types
Flower borders and beds Ground Cover Underplanting of Roses and Shrubs
City & Courtyard Gardens Cottage & Informal Garden
Pruning Dead or damaged fronds may be removed as necessary
Pests Generally pest free outdoors
May be infected by a rust in mild, damp winters
RHS members can get exclusive individual advice from the RHS Gardening Advice team.
hart's tongue fern
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