American climbing fern (Lygodium palmatum)

American climbing fern

Also known as: Climbing fern

American climbing fern (Lygodium palmatum), also known as the Hartford fern, comes from eastern North America. It is hardier than most climbing ferns, especially in temperate regions. Nevertheless, american climbing fern has the distinction of being the first protected plant species in the United States. It received that status in 1869.

Scientific classification

Species

American climbing fern (Lygodium palmatum)

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1.8 m to 2.5 m

Spread

Green

Leaf Color

Green

Stem Color

Evergreen, Semi-evergreen

Leaf type

5 - 32 ℃

Ideal Temperature

Moderate

Growth Rate

Images of American climbing fern

Quickly Identify American climbing fern

Twining fronds reaching 3 feet (90 cm) long.

Palmately arranged leaflets give a feathery appearance.

Distinctive palmately divided leaves with 3-7 lobed leaflets.

Fertile segments bearing spore-producing sori underneath.

Young leaves bright green, maturing to a deeper hue.

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Care Guide for American climbing fern

Every week

Water

Partial sun

Sunlight

5 - 32 ℃

Ideal Temperature

Water: American climbing fern thrives in moisture-rich environments and requires consistent hydration. It prefers evenly moist soil and should be watered weekly to maintain lush growth. Consider its natural response to seasonal rainfall when adjusting outdoor irrigation practices.

Fertilize: American climbing fern requires balanced fertilization for healthy growth, with bi-monthly feeding at quarter strength during the growing season. Seasonal adjustments are essential, reducing feeding in dormancy. Proper dilution and ensuring soil moisture before application prevent root burn and support vigorous growth.

Pruning: American climbing fern is a climbing fern with delicate fronds, thriving in shady, moist areas. Prune in early to late spring to remove dead fronds, control spread, and promote bushier growth. Use clean tools and cut above healthy nodes for new growth while enhancing air circulation and reducing disease risk.

Propagation: American climbing fern is a vining fern that prefers humid, shaded environments. To propagate, collect spores from mature cases on fronds and use a fine, moist substrate like milled sphagnum moss. Provide a warm, filtered-light setting for germination, and handle young ferns gently during transplanting.

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