Polystichum set’ Wollastonii

Description

Polystichum setiferum ‘Wollastonii’ – soft shield fern

Botanical name: Polystichum setiferum ‘Wollastonii’
Common names: Soft shield fern
Family: Dryopteridaceae
Plant type: Evergreen fern
Habit: Clump-forming, arching
Pot size: 3 litre pot
Eventual size: Approx. 60cm tall × 75cm spread
Foliage: Soft, finely divided, lacy dark green fronds in a graceful arching rosette; evergreen
Flowers: None — ferns reproduce by spores, not flowers
Scent: Not scented
Aspect / light: Partial to full shade
Soil: Moist but well-drained, humus-rich; tolerates lime and drier shade; any pH
Hardiness: RHS H6 (hardy, to about −20°C); USDA zones 5–8
Exposure: Sheltered
Native range: Selected form; the species is native to Europe including the UK
Toxicity / pet & child safety: Generally considered non-toxic to people and pets

Polystichum setiferum ‘Wollastonii’ is a soft shield fern with finely divided, lacy dark green fronds forming a graceful arching rosette. Elegant and evergreen, it is ideal for shady and woodland borders.

GardenAdvice notes

A refined form of the native soft shield fern, ‘Wollastonii’ is prized for its softly textured, finely divided, lacy fronds held in an elegant arching rosette. Evergreen and tolerant of drier shade and lime, it brings a soft, luxuriant grace to shady and woodland plantings.

Growing & planting

Plant in spring or autumn in moist but well-drained, humus-rich soil in partial to full shade, with shelter from cold, drying winds. Work in leaf mould or compost to hold moisture, and space according to the ultimate size, generally about 45–60cm apart.

Care & maintenance

Low-maintenance. Keep the soil from drying out, especially while establishing, and mulch with leaf mould in autumn. Remove old, tatty or frost-burnt fronds in early spring before the new growth unfurls. No feeding is usually needed beyond an annual mulch.

Propagation

• Division: Lift and divide congested clumps in spring.
• Spores: Can be raised from spores sown on moist, sterile compost, though this is slow and specialised.

Pests & diseases

Generally trouble-free and robust. Slugs and snails may graze the soft young fronds as they unfurl in spring, and fronds can scorch in dry or exposed positions. Moist soil and shelter keep it looking its best.

Uses in the garden

Ideal for shady and woodland borders, north-facing beds and among hostas and other shade plants, where its soft, lacy fronds add luxuriant texture

Wildlife value

The fronds and crown provide cover and shelter for small invertebrates through the year.

Toxicity & safety

Ferns are generally regarded as non-toxic to people and pets, though as with all ornamental plants they are not intended for eating.

GardenAdvice tip

Like the other soft shield ferns, ‘Wollastonii’ is valued for its beautifully soft, lacy texture and easy, tolerant nature — it copes with the drier shade and limy soil that many ferns dislike. Give it a moist, shaded spot for the lushest fronds, and it will reward you with elegant evergreen structure all year.

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