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Metallicum Japanese Painted Fern

Athyrium niponicum 'Metallicum'

The Story

Plant Bio

Athyrium niponicum var. pictum, the Japanese painted fern, is a deciduous fern with a low-growing, spreading habit. Its fronds are a unique mix of silvery-gray, green, and burgundy.

This fern is prized for its colorful, variegated fronds that brighten up shady areas of the garden. The cultivar name 'Metallicum' refers to the metallic silver sheen on the foliage.

Uses & Benefits:

Ornamental UsesAdds silvery foliage texture to shaded garden areas, enhancing visual interest.
Practical UsesErodes soil erosion on slopes with its dense root system.
Ecological BenefitsProvides habitat and nectar for native pollinators and beneficial insects.
SpeciesAthyrium niponicumJapanese painted fern

Essentials

At a Glance

Plant Type

Fern

Height

18 inches

Width

18 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Moist

Humidity

High

Lifespan

Perennial

Native To

East Asia

Toxicity

Non-toxic to pets

Planting

How to Grow

  1. Select a shaded spot with well-draining, moist soil for planting.
  2. Tuck young rhizomes into the soil, keeping the crown just above the surface.
  3. Mist cuttings regularly to maintain humidity and encourage root growth.
  4. Mulch around the base to retain moisture and suppress weeds.
  5. Water consistently, especially during dry spells, to keep soil moist.
  6. Divide clumps in early spring or fall to propagate new plants.

Pro Tip

Maintain consistent moisture and avoid direct sunlight for vibrant foliage.

Keep It Thriving

Care Guide

Do

  • Keep soil consistently moist 🌱
  • Provide shade during hot afternoons
  • Apply a balanced liquid fertilizer monthly

Don't

  • Avoid direct sunlight which can scorch leaves ❌
  • Do not let soil dry out completely
  • Avoid heavy, waterlogged soil

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Divide
Mulch
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silver-foliaged shade gardenTextured border with contrasting plantsMoist woodland garden accent

Companion Plants

Hostas Ferns Astilbes Japanese maples Ligularia

Multiply

Propagation Methods

Good to Know

Common Questions

Metallicum Japanese Painted Fern questions

What zones can Metallicum Japanese Painted Fern grow in?

Metallicum Japanese Painted Fern is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Metallicum Japanese Painted Fern deer resistant?

Yes — Metallicum Japanese Painted Fern is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

Does Metallicum Japanese Painted Fern need full sun?

Metallicum Japanese Painted Fern does best in part shade.

Keep exploring

Grow Metallicum Japanese Painted Fern with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.