Aroid.

Any member of the arum family, Araceae, whose flowers consist of a spadix of tiny flowers surrounded by a leaf-like spathe.

What it means for your plants

Monstera, pothos, philodendron, peace lily, ZZ, Anthurium and Alocasia are all aroids, and most contain calcium oxalate crystals that irritate the mouth if chewed. Family membership does not set care: climbing hemiepiphytes want chunky mixes, while peace lily prefers evenly moist media.

Put it into practice

Monstera, philodendron and pothos roots need air as much as water. A 1:1:1 starting blend of potting mix, bark and perlite, and how to adjust it for your pot and light.