Provide some long-lived interest to complement the brighter stems and flowers of other plants by adding a few evergreen ferns to winter pots. Polystichum, blechnum, asplenium and dryopteris are all available as evergreen species in garden centres around now.
Soak the plants first, then put them in among the other plants. Firm the compost gently and add more peat-free potting compost if necessary to bring the level up to
