Regal Red Japanese Painted Fern
Athyrium niponicum 'Regal Red'
Essentials
At a Glance
Plant Type
Fern
Height
18 inches
Width
24 inches
Light
Partial Sun, Shade
Zones
4, 5, 6, 7, 8, 9
Water
Consistently moist soil
Humidity
High humidity preferred
Lifespan
Perennial
Native To
Eastern Asia (Japan, China, Korea, Taiwan)
Toxicity
Non-toxic to humans and pets
The Story
Plant Bio
Athyrium niponicum, the Japanese painted fern, is a deciduous fern with a creeping rhizome, forming a clump of arching, bipinnate-pinnatifid fronds. Valued for its colorful foliage. Features deep violet-red central ribs (stipes and rachises) that bleed into silvery-green pinnae, creating a dramatic, almost metallic, three-toned effect. New growth emerges a rich red.
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Tuck spores or divisions into well-draining soil in early spring.
- Mist cuttings regularly to maintain humidity during propagation.
- Plant in partial shade with moist, rich soil for optimal growth.
- Water consistently, keeping soil evenly moist but not waterlogged.
- Mulch around the base to retain moisture and regulate soil temperature.
- Fertilize with a balanced, organic fertilizer in spring and summer.
Pro Tip
Ensure consistent moisture and avoid direct afternoon sun for vibrant foliage.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Provide partial shade to protect delicate fronds
- Apply organic mulch to conserve moisture
- Fertilize with a balanced organic fertilizer every spring
- Divide clumps every 3-4 years to promote healthy growth
Don't
- Avoid letting soil dry out completely ❌
- Do not expose to harsh direct sunlight in hot afternoons
- Refrain from over-fertilizing to prevent fungal issues
- Don’t disturb roots excessively when dividing
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Mulch | ||||||||||||
| Plant | ||||||||||||
| Spring Cleanup |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Regal Red Japanese Painted Fern questions
What zones can Regal Red Japanese Painted Fern grow in?
Regal 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 Regal Red Japanese Painted Fern deer resistant?
Yes — Regal Red Japanese Painted Fern is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
Does Regal Red Japanese Painted Fern need full sun?
Regal Red Japanese Painted Fern does best in part shade.
More Athyrium to compare
Japanese Painted Fern
Athyrium niponicum 'Pictum'
Ghost Fern
Athyrium niponicum 'Ghost'
Lady Fern
Athyrium filix-femina
Lady in Red Fern
Athyrium filix-femina 'Lady in Red'
Eared Lady Fern
Athyrium otophorum 'Okanum'
Tatting Fern
Athyrium filix-femina 'Frizelliae'
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