fern

Ursula's Red Japanese Painted Fern

Athyrium niponicum 'Ursula's Red'

Same species

Species

Athyrium niponicumJapanese painted fern

18 other cultivars

Essentials

At a Glance

Plant Type

Fern

Height

12 inches

Width

18 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Consistently moist

Humidity

Prefers high humidity

Lifespan

Perennial

Native To

Japan

Toxicity

Non-toxic to humans and pets

The Story

Plant Bio

Athyrium niponicum 'Ursula's Red' is a delicate, deciduous fern distinguished by its finely dissected, silvery-green fronds tinged with striking reddish-purple hues, providing a graceful ground cover in shaded gardens. This cultivar is notable for its vibrant red coloration, which intensifies during cooler weather, adding a unique splash of color to shaded woodland or border plantings.

Bloom Period:

J
F
M
A
M
J
J
A
S
O
N
D
EarlyLate

Uses & Benefits:

Ornamental UsesAdds delicate texture and silvery foliage to shaded gardens, providing visual interest year-round.
Practical UsesHelps retain soil moisture and suppress weeds in shaded areas.
Ecological BenefitsSupports local pollinators and beneficial insects in shaded woodland habitats.

Planting

How to Grow

  1. Tuck fern spores or divisions into prepared soil in early spring.
  2. Keep soil moist and rich in organic matter for optimal growth.
  3. Mist cuttings regularly to maintain humidity during propagation.
  4. Transplant young plants in spring after the last frost.
  5. Mulch around roots to retain moisture and suppress weeds.
  6. Fertilize lightly in early spring with a balanced, organic fertilizer.

Pro Tip

Provide consistent moisture and partial shade for best foliage color.

Keep It Thriving

Care Guide

Do

  • Water regularly to keep soil moist, especially in dry periods.
  • Prune dead or damaged fronds in early spring.
  • Mulch to retain soil moisture and regulate temperature.

Don't

  • Avoid overwatering, which can cause root rot.
  • Do not place in full sun, which can scorch delicate fronds.
  • Refrain from fertilizing in late fall to prevent new growth that could be damaged.

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

Shaded woodland gardenSilvery border with purple accentsUnderstory planting in shaded areas

Companion Plants

Hosta Astilbe Ligularia Japanese Forest Grass Ferns

Multiply

Propagation Methods

Good to Know

Common Questions

Ursula's Red Japanese Painted Fern questions

What zones can Ursula's Red Japanese Painted Fern grow in?

Ursula's Red 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 Ursula's Red Japanese Painted Fern deer resistant?

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

When does Ursula's Red Japanese Painted Fern bloom?

Ursula's Red Japanese Painted Fern typically blooms in late spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Ursula's Red Japanese Painted Fern need full sun?

Ursula's Red Japanese Painted Fern does best in part shade.

Keep exploring

Grow Ursula's Red 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.