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The three lists below are ferns that have survived or died in the Greta Risse Shade Garden at the University of Alaska Fairbanks Georgeson Botanical Garden. Plants are grown for at least five years, and annual data are recorded on survival, growth characteristics, ornamental potential and ability to vegetatively reproduce or produce spores.

Plants are grown in Fairbanks silt loan soil on a south-facing slope. Soils have been amended with organic matter since at least 1910. Plants grow beneath a lattice shade house that provides approximately 40% shade. The plants are fertilized annually, hand weeded, and irrigated as needed. More complete descriptive data will be available on the perennial trial site.

Table 1. Species that did not survive one winter in the garden
  • Adiantum aleuticum
  • A. aleuticum ssp. subpumilum
  • A.venustum
  • Athyrium otophorum,
  • Athyrium otophorum 'Frizelliae'
  • Blechnum penna­marina
  • Blechnum spicant
  • Cryptogramma acro-stichoides
  • Cryptogramma crispa
  • Cyrtomium
    falcatum 'Rochfordianum'
  • Cyrtomium macrophyllum
  • Dennstaedtia punctilobula
  • Dryopteris affinis var.
  • D. arguta
  • D. blanfordii
  • D. campyloptera
  • D. celsa
  • D. crispifolia
  • D. cristata
  • D. dilitata 'Lepidota Cristata'
  • D. filix­mas
  • D. lepidopoda
  • Dryopteris marginalis
  • D. sieboldii
  • Dryopteris sublacera
  • Onoclea sensibilis
  • Osmunda regalis,
  • O. regalis 'Undulata'
  • Phyllitis scolopendrium
  • Polypodium interjectum
  • Polystichum acrostichoides
  • P. munitum
  • P. neolobatum
  • P. setiferum 'Divisilobum'
  • Woodwardia fimbriata
  • Woodsia polystichoides
Table 2 Species that survived at least one winter but later died within the five-year trial period.
  • Cyrtomium fortunei
  • Cystopteris bulbifera
  • Dryopteris sp. Lacera type
  • Dryopteris affinis 'Crispa Barnes'
  • Dryopteris dilitata 'Jimmy Dyce'
  • Dryopteris hondoensis
  • D. scottii
  • D. stewartii
  • Polypodium scouleri
  • P. virginianum
  • Polystichum aculeatum

Table 3. Ferns that survived at least five years and are worth testing in other locations

  • Braun's Holly Fern, Polystichum braunii
  • Fragrant shield fern, Dryopteris fragrans
  • Japanese Painted Fern, Athyrium nipponicum pictum
  • Long Beech Fern, Phegopteris connectilis
  • Ostrich Fern, Matteuccia struthiopteris
  • Spreading wood fern, Dryopteris expansa
  • Wood fern Gymnocarpium dryopteris
The University of Alaska Fairbanks Georgeson Botanical Garden, PO Box 757200, Fairbanks, Alaska 99775 (907) 474-7222, gbgardensuaf@gmail.com
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