Aroids

Aroids belong to the Araceae and include familiar climbers, crawlers, rosettes and upright plants. Their leaves can be velvet-soft, glossy, perforated, deeply veined or very large, with compact and large-growing species spanning many textures and scales.

Substrate help

Aroid roots need structure, not dense compost

Choose airy ingredients and ready-to-mix substrate starters for Monstera, Philodendron, Anthurium and related indoor aroids.

Read the aroid substrate guide Shop Substrate Sets

Araceae

Aroids

Aroids are members of Araceae, recognised by the spadix-and-spathe inflorescence typical of the family. Indoors, growth habit is usually the most useful way to separate them.

Botanical Profile

Aroids are members of Araceae, recognised by the spadix-and-spathe inflorescence typical of the family. Indoors, growth habit is usually the most useful way to separate them.

Details & Care

Understanding aroid growth habits

Aroids include Philodendron, Monstera, Alocasia, Anthurium, Epipremnum, Scindapsus and many specialist genera. Their shared family traits appear across very different growth habits, leaf textures and mature sizes. Growth form is the clearest starting point for choosing among them.

Climbers, crawlers and central crowns

Climbers extend through nodes and aerial roots, often producing larger leaves as they gain height. Crawlers move horizontally through a stem close to the substrate and need a wide planting area. Self-heading plants build a central crown, while tuberous and corm-forming genera send leaves from underground storage structures.

Support and container shape follow these habits. Tall poles suit climbing stems, wide pots suit crawlers and stable containers support broad upright crowns. Young foliage can look very different from mature growth, especially on climbing species.

Leaf form and root structure

Aroid leaves range from heart-shaped and velvety to deeply divided, fenestrated or shield-like. Thick aerial roots, fine terrestrial roots and seasonal storage organs create distinct growth rhythms. Leaf texture and root type help explain why a compact jewel Alocasia behaves differently from a vigorous Monstera vine.

An airy aroid substrate supports many thick-rooted forms while allowing each genus to keep its own moisture rhythm. Mature height, leaf width and stem habit describe how each plant uses space. Container changes should follow root condition rather than a fixed schedule; see repotting houseplants. Clearer guidance on bright indirect light can help place the plant without exposing it to harsh sun.

Many aroids contain calcium oxalate crystals that can irritate the mouth when chewed. Remove cut material promptly and limit access around children and pets.

Frequently Asked Questions About Aroids

What makes a plant an aroid?

An aroid belongs to Araceae and is typically recognised by a spadix surrounded by a spathe. Indoors, that includes very different plants such as Monstera, Philodendron, Alocasia, Aglaonema and peace lilies, so “aroid” tells you the family, not one identical care style.

Are aroids good houseplants for beginners?

Some are, some are not. Aglaonema, Epipremnum, Scindapsus, many Philodendron and many peace lilies are usually easier indoors than Alocasia and many collector-type Anthurium, which react faster to cold, dry air and erratic watering.

Do aroids need bright light?

Most common indoor aroids look and grow best in bright indirect light. Some tolerate medium or lower indirect light, but growth usually slows, leaves stay smaller, and climbing types often become stretchier and less dramatic.

Do all aroids climb?

No. Some aroids climb or trail and improve with support, while others stay clumping, upright or self-heading. Monstera deliciosa and many vining Philodendron benefit from a pole or plank, while Aglaonema and many peace lilies do not.

Are aroids safe around pets?

Do not assume they are. Many common aroids, including Monstera, Philodendron, Epipremnum, Spathiphyllum and Alocasia, can irritate cats and dogs because of calcium oxalate crystals, so it is best to check the exact plant before buying.

Worth reading:

Sauromatum giganteum inflorescence with a large spathe and spadix

Aroid Plants: Araceae, Growth Forms and Care

Hands holding bare-root Anthurium crystallinum above coarse substrate in a transparent pot

The Complete Aroid Substrate Guide: Match Mix to Roots

Small sticky droplets on a houseplant stem

Why Is My Plant Leaking Sticky Liquid? Understanding Extrafloral Nectaries

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