Caladium Care: A Complete Guide

01 · MEET THE PLANT

What caladium is and where it comes from

Caladium is a tropical tuberous plant in the arum family (Araceae), native to the rainforests and riverbanks of Central and South America, especially the Amazon basin^[3][4]. Most cultivated caladiums descend from Caladium bicolor, and you will see them sold under the common names angel wings, elephant ear, and heart of Jesus. They are grown entirely for their large, paper-thin, heart-shaped leaves, which come in dazzling combinations of red, rose, white, and green.

The single most important thing to understand for caladium care is that it grows from a tuber and follows a strong seasonal cycle: it pushes out lush foliage in the warm months, then naturally dies back and goes dormant as temperatures cool. Caladiums are broadly split into fancy-leaf types, with big classic heart-shaped leaves, and strap-leaf (lance) types, which are more compact and often more sun-tolerant. All share the same core care needs covered below.

02 · LIGHT

Caladium light needs

Most caladiums do best in bright indirect light to part shade, which keeps the translucent leaf color vivid without scorching the thin foliage^[5]. Fancy-leaf types in particular can bleach and burn in harsh direct sun, while deep shade dulls their color and slows growth. Newer strap-leaf and sun-tolerant cultivars handle more direct sun, especially with steady moisture. Indoors, an east window or a spot near a bright, filtered south or west window is ideal. For the full breakdown, see our caladium light requirements guide.

03 · WATERING

How to water caladium

During active growth, caladium wants to stay consistently moist — these are moisture-loving plants, and letting them dry out causes the thin leaves to wilt and crisp quickly. Water when the top inch of soil begins to dry, which usually means every 5–7 days, keeping the mix evenly damp but never waterlogged^[6]. The critical rule that sets caladium care apart: once the plant begins to die back and go dormant in fall, stop watering entirely. A dormant tuber sitting in wet soil will rot — never water a dormant caladium. See how often to water a caladium for the full schedule.

04 · SOIL & POTTING

The best soil and pots for caladium

Caladium care calls for a rich, moisture-retentive but still well-draining potting mix — a quality peat- or coir-based mix amended with perlite or compost holds the steady moisture the tubers love without becoming soggy^[7]. Always use a pot with drainage holes. Plant tubers about 1–2 inches deep with the knobby side (the eyes) facing up, and start them in warm soil — they will not sprout in cold conditions. Because caladiums prefer warmth at the roots, avoid oversized pots that stay cold and wet.

05 · TEMPERATURE & HUMIDITY

Temperature and humidity for caladium

Caladium is a heat-lover with no tolerance for cold. Keep it warm, ideally between 70 and 85°F; growth stalls and leaves yellow when temperatures drop below about 60°F, and cold soil is a common reason tubers fail to sprout or rot^[8]. Never expose it to frost. As a rainforest plant, caladium also craves high humidity, ideally 60% or more; dry indoor air crisps the delicate leaf edges. A humidifier, pebble tray, or grouping plants together helps keep the foliage lush.

06 · FEEDING & GROOMING

Feeding and grooming caladium

Feed caladium during active growth to fuel that flush of foliage — a balanced liquid fertilizer at half strength every 2–4 weeks through spring and summer keeps the leaves large and vividly colored^[7]. Stop feeding as growth slows in late summer and the plant heads toward dormancy. For grooming, simply remove faded or damaged leaves at the base. Caladiums occasionally produce a small arum-type flower; many growers pinch it off so the plant channels its energy into foliage instead.

07 · PROBLEMS & TOXICITY

Common caladium problems and pet safety

• Yellowing, dying-back leaves. In fall this is normal dormancy, not a problem — reduce water and let the plant rest. Mid-season yellowing usually signals cold, overwatering, or too little light.
• Tuber rot. The main killer — caused by cold, wet soil or watering a dormant tuber. Keep growing plants moist but drained, and store dormant tubers dry and warm.
• Crispy, browning leaf edges. Low humidity, underwatering, or scorching sun. Raise humidity, keep soil moist, and move out of harsh direct light.
• Pests. Watch for aphids, spider mites, and thrips, especially in dry air — treat with insecticidal soap and improve humidity.
• Toxicity. Caladium is toxic to dogs, cats, and horses due to insoluble calcium oxalate crystals, which cause intense oral irritation and swelling if chewed — keep it away from pets and children^[9].

If wet soil is causing rot in the growing season, correct your watering habits — see how to stop overwatering houseplants.

08 · DORMANCY & SIZE

Caladium dormancy and sizing up

Dormancy is the defining feature of caladium care. As days shorten and temperatures fall, the leaves yellow and die back — this is natural. Stop watering, let the foliage wither, then either leave the tuber dry in its pot or lift it, cure it, and store it somewhere dry and warm (around 55–70°F, and never below 50°F) through winter^[10]. In spring, replant in fresh mix, resume watering, and provide warmth to wake it up again. Most caladiums grow 12–30 inches tall and wide depending on type — see how big do caladiums get for sizing by variety.