Anthurium

Anthuriums are tropical aroids native to Central and South America. The genus contains over 1,000 species and is one of the largest in the aroid family. They are grown for their spectacular foliage and long-lasting blooms. Foliage types include velvet-leaf species like A. clarinervium and A. magnificum, strap-leaf species such as A. warocqueanum, and flowering forms derived from A. andraeanum.

In the wild, most anthuriums grow as epiphytes or hemiepiphytes, clinging to tree trunks in humid forest understorey. This explains their preference for chunky, free-draining substrates and high humidity in cultivation. For broader aroid context, explore our aroid collection.

Anthurium clarinervium is one of the most forgiving foliage anthuriums. It produces stunning heart-shaped leaves with white venation and tolerates typical indoor conditions better than many tropical species. It adapts to moderate humidity and does not require specialist equipment to thrive.

Anthurium crystallinum is another accessible choice, with similar velvety leaves and silver venation on a slightly larger scale. Both species are widely available in our collection and well-suited to collectors starting out with aroids. For very easy-care options across all plant types, see our easy care houseplants.

Anthuriums prefer bright indirect light and high humidity. Plant in a chunky, well-draining aroid mix: bark, perlite and sphagnum moss works well. Water when the top 2 to 3 cm of substrate feels dry, and avoid letting roots sit in waterlogged compost. Feed every two to four weeks during the growing season with a balanced liquid fertiliser at half strength.

Most foliage species, including A. magnificum and A. crystallinum, appreciate humidity above 60%. A humidifier, pebble tray or grouping plants together all help. Avoid cold draughts and temperatures below 15 degrees Celsius. For a wider guide to aroid care conditions, see our aroid collection.

Most foliage anthuriums benefit from humidity above 60%, especially velvet-leaved species like A. magnificum and A. crystallinum. In lower humidity, new leaves may emerge crinkled or develop brown edges. Rare collector species such as A. warocqueanum are particularly sensitive.

Grouping plants together, using a pebble tray filled with water, or running a humidifier nearby all help maintain consistent levels. Some hardier species, including flowering anthuriums and A. clarinervium, are more tolerant of typical household humidity (40 to 50%) and are better suited to rooms without supplemental humidity.

Anthuriums contain calcium oxalate crystals and are considered mildly toxic to cats and dogs. Chewing the leaves can cause mouth irritation, drooling and digestive discomfort. They are not typically life-threatening but should be kept out of reach of curious pets.

For alternatives that deliver dramatic foliage with lower toxicity risk, our easy care collection includes a number of pet-friendlier options. Always check individual product pages for the most up-to-date pet safety information, and consult your vet if you have concerns about a specific plant in your home.

Yellow leaves on anthuriums are most commonly caused by overwatering. These plants need a well-draining substrate and should not sit in waterlogged compost. Check that the pot has drainage holes and that you are allowing the top layer of substrate to dry out between waterings. A. clarinervium and other foliage species are particularly prone to root rot if kept too wet.

Other causes include too much direct sun (which can also cause bleaching), cold draughts, or natural ageing as older lower leaves yellow and die back. If yellowing is widespread and accompanied by soft stems, suspect root rot. Repot into fresh aroid potting mix and remove any blackened roots. If yellowing affects newer growth, check for nutrient deficiency and resume a regular feeding schedule.