Platycerium
Platycerium elephantotis
elephant ear staghorn fern
- Latin
- Platycerium elephantotis
- Chinese
- 象耳鹿角蕨
- Japanese
- エレファントティス
- English
- elephant ear staghorn fern
Platycerium elephantotis, the elephant ear staghorn fern, comes from seasonally dry tropical Africa around the Congo basin, Angola and East Africa. It is the only species in the genus with broad, unforked fertile fronds, ribbed like an elephant's ear. It follows a wet-dry rhythm, dropping fronds in a cool dry rest and regrowing in spring, and it pups freely.
Care notes
Native habitat
Platycerium elephantotis is an African staghorn fern from the Congo basin, first described from Angola, with a range reaching Cameroon in the west and Uganda, Tanzania and Mozambique in the east. Sources differ on whether the habitat is seasonal woodland or savanna rather than true rainforest, but all agree on one thing: a marked wet season and a marked dry season. Everything below follows from that rhythm.
Light
Bright, filtered light. The broad, thin fronds scorch in direct midday sun, especially behind glass. Established plants can be hardened to more sun, but indoors a bright east window or a grow light is safer. Good light is what gives you wide fronds with raised veins.
Water and humidity
A heavy drinker in the growing season: soak the whole mount when the medium is just dry, and feed regularly. From early autumn taper watering over six to eight weeks until the mount is nearly dry, and hold it there through the cool months. Humidity of 50–70% is enough; it tolerates drier air than most Asian species.
Medium and mounting
Temperature and seasons (temperate, indoor)
Grow it at 18–35 °C. The winter rest is the whole art of this species. As temperatures and light fall, the fertile fronds yellow and drop, sometimes all of them, and the shields turn brown and papery. That is dormancy, not death. Keep it above 15 °C if the mount is moist; it will take 12 °C only if kept dry. Cold plus wet is the one fatal combination. When spring warmth returns, resume watering and new fronds appear within weeks.
Common problems
- Every frond dropped in winter: check that the bud is still firm, then wait for spring.
- Soft black bud: winter overwatering.
- Round brown spots on the fronds: water sitting on the leaf, poor airflow.
- Yellowing in summer: too little light or too little water. It drinks hard in summer.
Collector notes
Frond expression. The unforked, ear-shaped fertile frond is unique in the genus. Judge width, the wave of the margin and how strongly the veins stand up. The trade name 'mammoth' corresponds to var. mammuthus, a larger form with heavier veining; most other 'elephant' names in circulation are hybrids or selections, not forms of the species.
Mother-plant expression. Fertile fronds should come in matched, broad, symmetrical pairs, with upright, full shields.
FAQ
My Platycerium elephantotis dropped all its fronds in winter. Is it dead?
Probably not. This species comes from a climate with a real dry season, and in cool, low-light months it sheds its fertile fronds and lets the shields go brown and papery. If the bud is still firm, keep it nearly dry and above 15 °C and resume watering when spring warmth returns. New fronds follow within weeks.
Does Platycerium elephantotis need a dry rest in winter, and how do I water it?
Yes. From early autumn taper watering over six to eight weeks until the mount is nearly dry, then give only a light misting every few weeks through the cold months. Never soak a cold plant. Cold plus wet is the one combination that kills it. Resume normal watering once nights stay above about 18 °C.
Does Platycerium elephantotis produce pups?
Yes, freely. It is a multi-crown species that builds a colony around the mother plant. Pups can be separated once they have a few fronds, or left to form a clump. After division keep the pup humid and out of direct sun for two to three months until its roots take hold.
What is the difference between Platycerium elephantotis and 'mammoth' elephantotis?
The 'mammoth' form is generally taken to be var. mammuthus, a larger variant of the same species with broader, longer fronds and heavier veining. Care is identical; it simply needs a bigger board. Most other 'elephant' trade names are hybrids or selections rather than forms of the species.
Is Platycerium elephantotis good for beginners?
In the growing season it is one of the easier species: fast, drought-tolerant, quick to pup. The only hard part is winter, when you must trust that frond drop is dormancy and resist watering. Common in cultivation, yet large, symmetrical specimens are rare. Good for a grower willing to follow the seasons.