Eared lady fern

Sun

Partial to full shade; gentle morning sun is suitable where the soil stays moist. Avoid hot afternoon sun.

Water

Keep evenly moist, especially during establishment and dry summers; do not leave the roots in standing water.

Soil

Humus-rich, moisture-retentive but well-drained soil, preferably acidic to neutral.

Height

1.5-2.5 ft (0.45-0.75 m)

Spread

1-2 ft (0.3-0.6 m)

Foliage

Finely divided, triangular fronds emerge pale yellow-green and mature to soft green, with reddish-purple stalks and central ribs. Fronds usually die back for winter.

Growth

Moderate

Care needed

Low

• Deer resistant
• Heat tolerant
• Wildlife
• Low allergen

Northern hemisphere months. In Australia, shift them by six.

Difficulty

Easy

Toughness

Fairly tough

Pick your zone, country, light and whether you have pets.

1. Planting day

   1 ft (0.3 m)

2. After 1 year

   1.3 ft (0.4 m)

3. After 2 years

   1.6 ft (0.5 m)

4. After 3 years

   2 ft (0.6 m)

   full size

About 3 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Cats and dogs

Safe

Growth rate

Moderate

• Water deeply during dry spells, keeping the root zone moist rather than repeatedly wetting just the surface.
• Apply leaf mould or compost around the clump each spring, keeping the crown uncovered.
• Feed lightly in spring only if growth is weak; rich soil usually needs no additional fertiliser.
• Shelter from drying winds and strong afternoon sun.
• Divide established clumps in early spring if you want more plants or the centre becomes crowded.

Pruning. Remove dead fronds in late winter or early spring before new growth unfurls, cutting close to the base without damaging the crown. Leave healthy green fronds intact through the growing season.

Late winter

Cut away dead fronds before new shoots emerge.

Early spring

Plant or divide clumps as growth begins, then water thoroughly.

Spring

Apply a shallow mulch of leaf mould or compost around, but not over, the crown.

Late spring

Check emerging fronds for slug and snail damage.

Summer

Water during dry weather and check for scorching from sun or drying wind.

Autumn

Allow fronds to die back naturally and retain a light covering of fallen leaves around the clump.

• Plant in small groups beneath deciduous trees where roots have access to reliable moisture.
• Use beside a shaded path so the coloured stalks and finely divided fronds can be seen closely.
• Pair with broad-leaved hostas or bergenias for contrasting leaf shapes.
• Grow in a sheltered courtyard container with moisture-retentive compost and unobstructed drainage.

Garden styles it suits: Woodland, Japanese, Secret garden, Cottage garden, Moss and fern garden and Green on green.

Plant it with: Hostas, Epimediums, Brunnera, Astilbes, Japanese forest grass and Bergenias.

Wildlife: Provides sheltered ground-level cover for small invertebrates. It has no flowers and supplies no nectar or pollen.

• Slugs and snails can damage emerging fronds; inspect at dusk, remove them by hand and use wildlife-conscious controls if needed.
• Dry soil or strong sun causes brown, crisp edges; water deeply, mulch and provide more shade.
• Waterlogged soil can rot the crown and roots; improve drainage or move the plant, and keep mulch off the crown.
• Late frost can blacken newly unfurled fronds; cover emerging growth with horticultural fleece when frost is forecast and remove damaged fronds afterward.

Not known to be toxic to people, cats, dogs or horses, although species-specific safety information is limited. Do not treat the fronds, young shoots or rhizomes as edible.

• Lady fern (Athyrium filix-femina)

  Usually has longer, narrower, more finely divided fronds. Eared lady fern has broader triangular fronds and conspicuous ear-like lobes at the bases of its leaflets.

• Japanese painted fern (Athyrium niponicum)

  Painted forms have conspicuous silver-grey colouring across the fronds, unlike the mainly pale green foliage of eared lady fern; unpainted forms are harder to distinguish.

Otophorum means 'ear-bearing', referring to the small ear-like lobes at the bases of the leaflets.

Propagation. Divide established clumps in early spring, retaining healthy roots and growing points on each piece. It can also be raised from spores, but this is slower and requires consistently humid, clean conditions.

Accepted botanical name

Athyrium otophorum

Native range

Assam, China South-Central, China Southeast, Japan, Korea, Taiwan and West Himalaya.

Sources: GBIF (CC BY 4.0) and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.