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Philodendron callosum

Philodendron callosum
Photo: Bachelot Pierre J-P, CC BY-SA 3.0

Philodendron callosum is an epiphytic climbing aroid from the wet forests of northern South America, grown as a houseplant for its glossy, leathery leaves. The key to growing it is steady warmth, humidity and bright indirect light without soggy roots.

Family
Araceae (Arum family)
Grows as
Epiphyte
Light
Bright indirect
Water
Let the top few centimetres of the mix dry out between waterings, then water thoroughly.
Soil
Chunky, airy aroid mix with bark, perlite and peat or coco coir.
Temperature
18–30 °C; protect below 10 °C
How easy
Easy
Safety
Toxic: All parts contain calcium oxalate crystals that cause burning and swelling of the mouth and throat and irritation if chewed or swallowed.. Toxic to cats and dogs (ASPCA).
Native range
N. South America to N. Brazil
Climate
wet tropical

About

Philodendron callosum is a species of flowering plant in the family Araceae. An epiphyte, it is native to wet forests of northern South America. Its floral scents dihydro-β-ionone and 2-hydroxy-5-methyl-3-hexanone serve to attract its pollinators, scarab beetles of the genus Cyclocephala. With its leathery, glossy leaves it has found use as a houseplant.

Other Philodendron plants

Philodendron angustisectum · Philodendron atabapoense · Philodendron campii · Spade Leaf Philodendron · Philodendron elegans · Blushing Philodendron · Shortstem philodendron · Philodendron gigas · Vilevine · Philodendron jacquinii · Philodendron mayoi · Philodendron mexicanum

Text excerpted from the Wikipedia article Philodendron callosum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.

The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.

Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.

Pet safety from the ASPCA toxic and non-toxic plant lists.

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