Polystichum aculeatum (hard shield fern) — Bushy

Overview

Polystichum aculeatum is a bushy ferns in the genus Polystichum, part of the Dryopteridaceae family, with evergreen foliage. It typically grows around 0.5-1 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Polystichum aculeatum grows best in full shade and partial shade, and tolerates most soils and any pH. It is low maintenance.

About

Polystichum aculeatum, commonly known as hard shield fern or prickly shield fern, is a bushy evergreen fern from the Dryopteridaceae family. It typically grows to a height and spread of 0.5 to 1 metre, reaching full size within 2 to 5 years. This fern thrives in full or partial shade, favouring north- or east-facing, sheltered aspects. It adapts well to various soil types including chalk, loam, and sand, across a range of pH levels, provided the soil is well-drained. Polystichum aculeatum is a low-maintenance plant valued for its winter interest.

Growing conditions

Best soil and position for Polystichum

Sunlight: Full shade, Partial shade
Soil type: Chalk, Loam, Sand
Soil pH: Acid, Alkaline, Neutral
Soil moisture: Well-drained
Aspect: North-facing, East-facing
Exposure: Sheltered

Plant details

Polystichum aculeatum size, habit and characteristics

Plant type: Ferns
Habit: Bushy
Foliage: Evergreen
Height: 0.5-1 metres
Spread: 0.5-1 metres
Time to full height: 2-5 years

Frequently asked questions

Where is the best place to plant Polystichum aculeatum?

Polystichum aculeatum prefers full shade and partial shade. It suits sheltered positions.

What soil does Polystichum aculeatum need?

Polystichum aculeatum is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays well-drained.

How big does Polystichum aculeatum grow?

Polystichum aculeatum reaches a height of 0.5-1 metres and a spread of 0.5-1 metres. It takes around 2-5 years to reach full size.

More in the Polystichum genus

Browse all Polystichum →