Ferns – Deciduous or Evergreen. I’ve set out below the ferns we grow and a note as to whether they keep their leaves or not over winter.
Adiantum – deciduous
- Adiantums reliably loose their fronds each winter, leaving a forest of wire thin stalks.
Asplenium – evergreen
- Harts Tongue Ferns are reliably evergreen, usually looking fairly good until the new fronds appear. A harsh winter may damage the fronds and make them a little ratty, but on the whole they look good.
Athyrium – deciduous
- Come the winter, harsh or mild, the fronds of athyriums crisp up and lay flat to the ground.
Dryopteris – semi-evergreen
- The Dryopteris vary as to their degree of evergreen(ness), and this varies with the harshness of the winter. The most evergreen are the asiatic D.erythrosora and D.lepidopoda. I na mild winter D.affinis and others can keep their fronds, but outside they will usually have collapsed somewhat.
Matteuccia – deciduous
- The shuttlecock fern is fully deciduous.
Polypody – evergreen
- These smaller ferns tend to be fully evergreen.
Polystichum – evergreen
- Polystichums are evergreen and usually look good right until the new fronds emerge. Polystichum munitum tends to look particularly good, earning the name ‘Christmas Fern’.
Ferns – deciduous or Evergreen