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Platycerium willinckii (Platycerium willinckii)

Platycerium willinckii is a perennial herbaceous epiphytic fern that can grow attached to tree trunks, branches, rocks, or artificial boards. It is generally reported to have a clumping growth habit.

LightBright, abundant indirect light is suitable, and it can also grow with partial sun; in summer it needs shade and good airflow. It is generally reported to tolerate some direct sun.
WaterProvide sufficient water during active growth, but use a well-draining medium and let the root zone dry slightly between waterings; prolonged excess moisture can cause rot, and watering should be reduced in winter or dur
HumidityIt is generally reported to prefer moderate humidity. It needs good airflow. It is generally reported to prefer high humidity.
TemperatureSources differ on its minimum and ideal temperature conditions. A single source reports an upper temperature condition without a confirmed numeric value here. It is generally reported to be frost tender; keep above freez
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Platycerium willinckii illustration

Overview

Platycerium willinckii is a perennial herbaceous epiphytic fern that can grow attached to tree trunks, branches, rocks, or artificial boards. It is generally reported to have a clumping growth habit.

Origin and habitat

Platycerium willinckii is reported to be native to Java in Southeast Asia. It is an epiphytic fern; in natural settings, members of the staghorn fern genus can grow on trees or rocks. It is native to tropical regions, favors warm conditions, and needs protection from winter cold.

Characteristics

Few-source information reports a mature height of about 10–150 cm and a mature spread of about 100–100 cm. It is reported to grow quickly when water is sufficient and to produce offsets more readily under these conditions. It has distinct shield and fertile fronds: shield fronds lie against the base, are often green to yellowish brown, and have fringed lobes along their margins, while fertile fronds are narrow, strap-shaped, pendent, and hairy on both surfaces, with the hairs more conspicuous on young fronds and becoming sparser as they mature. The shield fronds are shield-shaped and lie against the base with fringed marginal lobes, while the fertile fronds are strap-shaped and pendent, ending in antler-like forks.

Light

Bright, abundant indirect light is suitable, and it can also grow with partial sun; in summer it needs shade and good airflow. It is generally reported to tolerate some direct sun.

Watering

Provide sufficient water during active growth, but use a well-draining medium and let the root zone dry slightly between waterings; prolonged excess moisture can cause rot, and watering should be reduced in winter or during colder, cloudy conditions. Sources differ on summer watering, with the limited information suggesting about every 2–3 days. Few-source information suggests winter watering at about every 7 days.

Humidity and airflow

It is generally reported to prefer moderate humidity. It needs good airflow. It is generally reported to prefer high humidity.

Temperature and dormancy

Sources differ on its minimum and ideal temperature conditions. A single source reports an upper temperature condition without a confirmed numeric value here. It is generally reported to be frost tender; keep above freezing, and it is sensitive to cold. It is generally reported to be not very sensitive to heat.

Growing medium and mounting

It is reported to grow well mounted on wood, tree-fern board, or another epiphytic support with sphagnum moss or another moisture-retentive but well-draining medium; when potted, a humus-rich, well-draining medium is recommended. It is generally reported to grow on trees as an epiphyte and can be mounted, grown in a basket, or potted.

Feeding

Sources differ on feeding details, but balanced fertilizer can be used; feeding is more frequent during active growth and reduced in winter, while mature plants may need less frequent feeding.

Propagation

Platycerium willinckii can be propagated by dividing offsets or young plants; staghorn ferns can also be propagated from spores, though division is easier in home cultivation, and this species readily produces offsets and forms clumps. It is generally reported to often produce offsets. The spore-producing clusters are reported to occur on the underside of the antler-like forks at the ends of fertile fronds.

Common problems

Scale insects, mealybugs, and aphids are reported as possible pests. Anthracnose may occur, and overwatering may lead to root rot. Overwatering may cause rot, insufficient water may cause brown or curled frond tips, and low light may increase pest and disease problems. It does not tolerate cold and needs protection from frost; in winter it should be kept warm, while summer conditions call for airflow and moderate shade.

Identification

Platycerium willinckii is reported to have proportionally narrow, pendent fertile fronds, shield-shaped shield fronds with fringed marginal lobes, and a tendency to produce offsets and form clumps.

Photos

Platycerium willinckii
📷 Bernard DUPONT from FRANCE · CC BY-SA 2.0 · source
Platycerium willinckii
📷 Bernard DUPONT, some rights reserved (CC BY-SA) · CC BY-SA · source

Sources