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Adiantum raddianum 'Lisa'



I know they aren't hardy enough for me, even in the greenhouse, but I find it difficult to resist new cultivars of the species when I see them. This one has survived a couple of winters under glass without ever looking entirely happy about it.
Narrow, triangular fronds composed of narrow, trangular pinnae. I can't find a record of its origin.

Fancy Fronds Nursery say:

"A very upright, compact sub-tropical Maidenhair Fern selected out of the species A. raddianum with a very distinct foliage pattern. The unusual thing about this cultivar is that the stipe and rachis (stem and stalk) are held nearly completely upright on a vertical plane, with soft dark green pinnae that are so cupped on the adaxial (top or front side) surface, that mostly only the abaxial (bottom or back side) of the foliage is visible. The overall effect highlights the straight, black stems, graced by little v-shaped inverted cones resembling a small tower of suspended green vases! Or if you prefer, like little curled up witch-feet, if you happen to remember what happened when Dorothy’s house fell on the Wicked Witch of the East. Though it does not get as large or grow quite as fast, cultivation requirements are similar to the species A. raddianum."



14th September 2017



14th July 2023 21st July 2023 4th July 2026



References:
  • Grounds, Roger - 'Ferns' , Pelham Books, 1974
  • Olsen, Sue - 'Encyclopedia of Garden Ferns' , Timber Press, 2007
  • Rickard, Martin - 'Gardening with Ferns' , David and Charles, 2005
  • Fancy Fronds Nursery, https://www.fancyfrondsnursery.com/ferns/adiantum-raddianum-lisa , accessed 23.10.2026.