Western Sword Fern (Polystichum munitum)

🌱

☀️

Sunlight Thrives in partial to full shade; tolerates dappled sunlight but avoid direct midday sun which can scorch fronds

💧

Watering Keep soil consistently moist but not waterlogged; allow top 2 cm of soil to dry slightly between waterings

🌡️

Temperature Prefers cool to temperate temperatures; withstands brief light frosts down to -5°C but protect from prolonged freezing

🔍

Frond: Leathery, dark green lance-shaped fronds with sharply pointed leaflets; up to 1.8 m long
Rhizome: Thick, scaly, creeping underground rhizome forming dense clumps
Sori: Round, dark brown spore clusters on underside of mature fronds

🛠️

Watering

Keep soil evenly moist; increase frequency during hot, dry periods

Fertilization

Apply diluted organic feed once monthly. Avoid over-fertilizing as it can cause browning of frond tips

Composted banana peel tea：Fully compost banana peels, dilute 1:25 with water for root drench; avoid raw peels to prevent pest infestations

Pruning

Remove brown, dead fronds at the base to maintain tidy clumps and improve airflow
Trim discolored frond tips to preserve the plant's neat appearance
Divide overcrowded clumps in early spring to propagate new plants

⚠️

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no adverse effects reported

Humans: No known toxic effects from ingestion or skin contact

📖

Culture: Symbolizes resilience in Pacific Northwest indigenous cultures

Usage: Ornamental shade garden plant; cut fronds used in floral arrangements