Formosan Shield Fern
Dryopteris formosana
Not currently listed at our partner nurseries.
Essentials
At a Glance
Plant Type
Fern
Height
24 inches
Width
36 inches
Light
Partial Sun, Shade
Zones
6, 7, 8, 9
Water
Prefers consistently moist soil
Humidity
High humidity preferred
Lifespan
Decades
Native To
Asia
Toxicity
Non-toxic
The Story
Plant Bio
Dryopteris formosana is an evergreen to semi-evergreen fern characterized by its lush, arching fronds with finely divided leaflets, creating a graceful, feathery appearance ideal for shaded garden areas. This species is particularly valued for its vigorous growth and adaptability to various soil conditions, making it a popular choice for woodland and shaded landscape settings.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
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Planting
How to Grow
- Tuck spores or divisions into prepared soil
- Water thoroughly after planting
- Mist regularly to maintain humidity
- Mulch around base to conserve moisture
- Fertilize with a balanced, water-soluble fertilizer in spring
- Divide every 3-4 years for healthy growth
Pro Tip
Keep soil consistently moist and provide shade for best results.
Keep It Thriving
Care Guide
Do
- Water regularly to keep soil moist 🌱
- Mulch to retain moisture and suppress weeds
- Fertilize in early spring with a balanced fertilizer
- Divide every few years to promote vigorous growth
- Prune dead or damaged fronds
Don't
- Allow soil to dry out completely ❌
- Expose to direct, harsh sunlight
- Overfertilize, which can cause leggy growth
- Ignore pest signs or disease symptoms
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Divide | ||||||||||||
| Mulch | ||||||||||||
| 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
Formosan Shield Fern questions
What zones can Formosan Shield Fern grow in?
Formosan Shield Fern is hardy in USDA Zones 6–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Formosan Shield Fern deer resistant?
Yes — Formosan Shield Fern is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.
When does Formosan Shield Fern bloom?
Formosan Shield Fern typically blooms in early spring through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Formosan Shield Fern need full sun?
Formosan Shield Fern does best in part shade.
More Dryopteris to compare
Broad Buckler-fern
Dryopteris dilatata 'Jimmy Dyce'
Log Fern
Dryopteris x celsa 'Shreveport'
Autumn Fern
Dryopteris erythrosora
Shaggy Shield Fern
Dryopteris cycadina
Western Wood Fern The King Fern
Dryopteris affinis 'The King'
Goldie's Wood Fern
Dryopteris goldieana
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Hardy in your zone?
Grow Formosan Shield 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.
