Giant Staghorn Fern (Platycerium grande)

Giant Staghorn Fern (Platycerium grande) key facts

Growing Difficulty

Advanced

Lifespan

Perennial (epiphytic fern)

Size

Shield fronds reach 90-115 cm long and 90-135 cm wide

Watering

Little data on feeding; in the wild, leaf litter trapped by the shield fronds decomposes to supply nutrients

Light & Placement

Semi-shade. Avoid strong direct sun and hang it in a bright, airy spot.

Watering

Water the crown regularly, letting the roots dry slightly between waterings but never completely. Soak mounted plants or water the base thoroughly.

Temperature & Overwintering

Less cold tolerant than P. superbum. Keep it in a warm room or greenhouse in winter.

Soil & Repotting

Mount on a board or tree-fern slab with sphagnum moss, or pot in an orchid mix or sphagnum. The shield fronds grow over the base to cover the roots, so never peel them off.

Propagation

It produces no pups and cannot be divided; it is propagated from spores or by tissue culture.

Pests & Cautions

P. superbum has long been sold under this name, so confirm by the number and shape of spore patches on mature fronds. Watch for spider mites, aphids and mealybugs. The white star-shaped hairs on the fronds protect the plant, so do not rub them off.

About Giant Staghorn Fern (Platycerium grande)

Discover Platycerium grande, a giant staghorn fern from Mindanao, Philippines. Its shield fronds reach 90–115 cm long and 90–135 cm wide, creating a dramatic epiphytic silhouette for experienced growers.

7 things to know before growing Giant Staghorn Fern (Platycerium grande)

1. 1Bright, Indirect Light

   Place your Platycerium grande in bright, filtered light rather than direct sun, such as through a sheer curtain. As an epiphyte, good airflow around the plant supports healthy shield and fertile fronds.

2. 2Water When the Roots Are Slightly Dry

   Water the base of the plant, around the growing point, on a regular basis, giving it a thorough drink once the roots have dried slightly. Don't let it dry out completely. For mounted plants, soak the whole mount in water or pour water generously over the base.

3. 3Mounting or Potting

   In the wild, Platycerium grande grows attached to trees, so mounting it on cork bark or wood mirrors its natural growth habit. If potting instead, use a well-draining epiphyte mix or sphagnum moss.

4. 4Plan for Its Mature Size

   Since Platycerium grande can spread 90–135 cm wide at maturity, choose a mount or container with its full-grown size in mind from the start. When repotting or remounting, time it for the plant's more active growth period to minimize stress.

5. 5Seasonal Temperature Care

   As a tropical epiphyte, Platycerium grande does best when kept in a warm environment during colder periods. Humidity levels shift with the seasons, so adjust its placement to balance airflow and moisture accordingly.

6. 6Check the Fertile Fronds

   When choosing a plant, look at the fertile fronds to confirm the characteristic symmetrical spore patches on each lobe. Also check that the shield fronds are a healthy green with minimal damage.

7. 7Identifying vs. P. superbum

   Platycerium grande is often confused with the very similar P. superbum, but it can be distinguished by its forked fertile fronds, which bear two equally sized spore patches on each side of the lobes. Checking for this feature before you buy can help confirm the species.

Frequently asked questions about Giant Staghorn Fern (Platycerium grande)

Q.Is Platycerium grande suitable for beginners?

A.Platycerium grande grows quite large and is generally considered a plant for advanced growers. Because it requires careful attention to watering and placement, it's best approached after gaining experience with other staghorn ferns.

Q.How large does it grow?

A.A mature plant's shield fronds can reach 90–115 cm in length and 90–135 cm in width. It's one of the larger species among staghorn ferns.

Q.What's the difference from P. superbum?

A.The two species look very similar, but Platycerium grande can be identified by its forked fertile fronds, which carry two equally sized spore patches on each side of the lobes. Checking this feature before purchase makes identification easier.

Q.Is mounting or potting better for this plant?

A.In its native habitat it grows attached to trees, so mounting on bark or wood is closer to its natural form. It can also be grown potted, in which case a well-draining epiphyte mix is recommended.

Q.What should I watch for during winter care?

A.As a tropical epiphyte, it does best kept in a warm indoor environment during colder months. Also pay attention to balancing airflow and humidity in its location.

Handy Growing Tools for Giant Staghorn Fern (Platycerium grande)

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