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Fern

Common Polypody

Polypodium vulgare

Common Polypody (Polypodium vulgare) growing in a UK garden

A compact, evergreen fern native to the UK, with leathery, deeply lobed fronds spreading slowly via creeping rhizomes. Polypody is uniquely adapted to growing on tree branches, mossy walls, rocks, and banks in dappled shade. It has an unusual growth cycle, producing new fronds in late summer and remaining green through winter when most other ferns are dormant. This makes it invaluable for year-round interest in shaded areas of the garden.

How to grow common polypody

Plant in a shaded or partially shaded position with good drainage. Unlike most ferns, polypody dislikes waterlogged soil and naturally grows in free-draining positions such as tree stumps, moss-covered walls, and rocky banks. Set the creeping rhizome on or just below the surface of humus-rich, well-drained soil or compost. In garden borders, mix leaf mould and coarse bark into the planting area. Polypody tolerates drier conditions than most ferns, especially in winter. Water during prolonged dry spells in summer, when the old fronds die back naturally. New fronds appear in late summer and persist through winter and spring. Tuck rhizome sections into crevices in stone walls, tree fern trunks, or log piles for a naturalistic woodland effect. No feeding is needed in enriched soil.

Pruning

Remove the old, withered fronds in midsummer as they die back naturally. This makes room for the new season's growth emerging in late summer. No other pruning is needed.

Propagation

  • Rhizome division in late spring
  • Spore sowing

Common problems

  • Rot in waterlogged soil
  • Drying out on exposed walls in summer heat
  • Slugs on young fronds

Good companions

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