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Cyrtomium falcatum
house holly-fern
Cyrtomium falcatum
Cyrtomium falcatum, commonly known as Japanese Holly Fern, is a robust, evergreen fern with leathery, glossy fronds. Its distinctive foliage resembles holly leaves, hence the common name. It is adaptable to various conditions, tolerating drought and shade, making it a popular choice for indoor and outdoor gardens. It thrives in well-draining soil and prefers indirect light.
CategoryDetails
Plant TypePerennial plant
Estimated Plant Lifespan10 years lifespan
Sun Requirements2-4 hours direct sunlight (Partial Shade)
Watering Requirements

Method: Top water

Frequency: When the top inch of soil is dry

Notes: Ensure good drainage to prevent root rot.

Humidity Requirements

Level: Moderate

Maintenance: Misting or placing the plant on a pebble tray.

Cleaning RequirementsRemove dead or damaged fronds to encourage new growth and maintain a tidy appearance. Avoid placing in direct sunlight, which can scorch the leaves.
Temperature Range

Min: 10°C

Max: 24°C

Alternative NamesPhanerophlebia falcata, Polypodium falcatum, Polystichum falcatum, Aspidium falcatum, Dryopteris falcata, Asian Net-Veined Holly, Japanese Holly Fern, holly fern
Tiarella cordifolia
Heartleaf Foamflower
Tiarella cordifolia
Foamflowers also enjoy shady conditions and moist soil, making them an excellent companion plant. Their delicate flowers add a touch of elegance to the fern's bolder foliage.
Liriope muscari
Liriope
Liriope muscari

Liriope can compete for space and nutrients, potentially overshadowing the Japanese Holly Fern if not properly managed.

Scale

Scale insects can suck sap from the fronds, causing yellowing and stunted growth. Look for small, brown, shell-like bumps on the undersides of leaves and stems.

Mealybugs

Mealybugs are sap-sucking insects that leave a white, cottony residue on the fronds, weakening the plant. They cause yellowing, leaf drop, and stunted growth.

Aphids

Aphids are small, soft-bodied insects that cluster on new growth and suck plant sap. This causes distorted growth, yellowing, and the secretion of honeydew, which can lead to sooty mold.

Steps:

    • For spores: Collect spores from mature fronds when they appear brown and dusty.
    • Sow spores on a sterile, moist potting mix and cover with plastic wrap to maintain humidity.
    • Keep in a shaded area and mist regularly until small plantlets appear.
    • For division: Carefully dig up a mature plant in early spring.
    • Gently separate the rhizomes, ensuring each section has roots and fronds.
    • Replant the divisions in well-draining soil and water thoroughly.

Neem Oil

Effective natural treatment for scale, mealybugs, and aphids.

Insecticidal Soap

Another good option for controlling common fern pests like aphids and mealybugs.

Seaweed Extract

Enhances overall plant health and resilience.