Three ferns of your choice for £12 (P&P is extra). It would help to nominate a reserve fern, just in case any of your first choice ferns runs out (but please state clearly that this is as an alternative, rather than a fourth plant ordered).
Sea Pen Evergreen mat-forming, with dark green fronds to 15cm. Good for moist neutral to acidic soil, in in partial or full shade, but will grow in full sun in damp soil.
Broad Buckler Fern Hardy semi-evergreen with toothed and crispy fronds growing in bushy clumps to 60cm tall. Easy in good garden soils in full or partial shade.
Golden Scaled Male Fern Hardy and reliable semi-evergreen fern forming medium to large clumps of deep green fronds up to 125cm long. Plant in moist, shady soil.
Eared Lady Fern Very attractive hardy herbaceous painted fern. Forms a clump of arching pale green fronds with dark red stems up to 80cm, which looks particularly stunning as the fronds first emerge. Moist free-draining humous rich soil in semi-shade.
Oriental Ostrich Fern Deciduous fern with large open fronds up to 100cm and distinctive fruiting fronds in late spring. Grow in a sheltered position in cool moist soil. Spreads slowly.
Slender Crested Male Fern Hardy deciduous fern forming clumps with large arching fronds of narrow pinnules to 90cm. Prefers cool moist shade or semi-shade.
Japanese Tassle Fern Hardy semi-evergreen fern with pale-green fronds, with yellow bristles, growing up to 60cm. Fronds darken with age. Moist well-drained soil in semi-shade.