Elephant ear (Caladium) care guide

Caladium is a frost-tender tropical plant grown for its colorful, heart-shaped foliage. It belongs to the Araceae family and is usually grown as a seasonal bedding or container plant in the United States.

Grow caladium in bright filtered light or shade, loose humus-rich soil, and evenly moist conditions. Protect it from frost and avoid letting the soil become either bone-dry or waterlogged.

Caladium can grow indoors or outdoors, provided it receives warm temperatures, bright indirect light, and consistent moisture. Outdoors it is commonly grown as a summer plant because the tubers are frost-tender.

Caladium grows best in bright filtered light, dappled shade, or partial shade. Too much direct afternoon sun can scorch the leaves, while very deep shade may reduce growth and leaf color.

Caladium can tolerate full shade, but growth may be slower and the foliage may be less colorful. Bright shade or filtered light generally produces the best balance of leaf size and color.

Many caladiums tolerate gentle morning sun, especially when the soil stays evenly moist. Protect the leaves from intense afternoon sun, which can cause fading, scorch, or crispy margins.

Caladium prefers warm conditions and grows poorly in cold soil or cool weather. Protect it from frost and bring containers indoors before temperatures become consistently cool.

Caladium can remain outdoors year-round only in warm regions where the ground does not freeze, generally USDA Zones 8b through 11 with suitable winter conditions. In colder areas, the tubers should be lifted and stored before frost.

Water caladium whenever the soil surface begins to dry, keeping the root zone evenly moist. Water less during dormancy, and make sure excess water drains freely to reduce the risk of tuber rot.

Yellow leaves may indicate natural dormancy, overwatering, underwatering, cold temperatures, or nutrient stress. If yellowing occurs late in the season, gradually reduce watering as the plant prepares to rest.

Brown edges or patches commonly result from dry soil, low humidity, intense sunlight, cold damage, or fertilizer stress. Keep the soil evenly moist and move the plant away from harsh direct sun.

A wilting caladium usually needs water, but wilt can also result from root or tuber rot, heat, or cold stress. Check the soil and roots before watering heavily, because soggy soil can worsen the problem.

Caladium may lose color when it receives too little light, experiences temperature stress, or approaches seasonal dormancy. Move it to bright filtered light while avoiding strong afternoon sun.

Caladium may be affected by aphids, mealybugs, spider mites, caterpillars, slugs, snails, and grasshoppers. Inspect leaves regularly and address infestations early with a treatment labeled for ornamental plants.

Prevent tuber rot by planting in loose, well-drained soil, avoiding persistent waterlogging, and keeping stored tubers dry but not exposed to freezing temperatures. Cool, wet soil is especially risky during planting and dormancy.

Plant caladium tubers in spring after frost danger has passed and the soil has warmed to at least about 60°F, with around 70°F producing faster growth. Cold, wet soil can delay sprouting or encourage rot.

Plant caladium tubers about 1 to 2 inches deep with the budded or bumpy side facing upward. Follow the supplier’s directions for unusually large tubers or a specific cultivar.

Use loose, humus-rich, well-drained soil that holds moisture without becoming soggy. A fertile, slightly acidic soil amended with organic matter is generally suitable for garden beds and containers.

Caladium grows well in containers with drainage holes and a moisture-retentive but well-drained potting mix. Containers also make it easier to move the plant indoors before cold weather.

Space caladiums according to their mature size, commonly about 8 to 12 inches apart for a fuller display. Larger cultivars may need more room, while compact types can be planted closer together.

Before frost, dig the tubers carefully, let them cure in a dry location for about 1 to 2 weeks, then store them in dry peat, vermiculite, or sawdust. Keep them in a dark, well-ventilated place roughly 60 to 65°F and prevent freezing.

You can overwinter caladium in its pot by allowing the foliage to yellow naturally, reducing watering, and keeping the dormant container warm and dry. Avoid watering dormant tubers heavily because excess moisture can cause rot.

Dig caladium tubers in late summer or fall before a killing frost, especially in USDA Zones 8a and colder. In warmer zones, they may remain in the ground, although wet winter soil can still cause losses.

Caladium is usually propagated by dividing its tubers. Each division should contain at least one healthy bud or growth point, and cut surfaces should be allowed to dry before planting.

Caladium can be grown from seed, but seed propagation is slower and may not reproduce the parent plant’s exact leaf color or pattern. Division of mature tubers is the usual method for home gardeners.

Prune caladium by removing yellow, damaged, or diseased leaves at the base with clean scissors. Healthy leaves generally should be left in place because they help the tuber store energy.

Caladium flowers are usually insignificant, so removing them is optional and mainly improves the plant’s appearance. The plant is grown primarily for foliage rather than blooms.

Yes, caladium is toxic if chewed or swallowed because it contains irritating calcium oxalate crystals. Ingestion can cause burning and swelling of the mouth and throat, so keep the plant away from children and seek medical advice after ingestion.

Yes, caladium is toxic to dogs and cats if chewed or swallowed. Keep it out of reach and contact a veterinarian or animal poison service if a pet eats any part of the plant.

Caladium sap may cause minor skin irritation in sensitive people. Wear gloves when dividing tubers or handling damaged foliage, and wash exposed skin afterward.

Caladium can produce a small, pale spathe and spadix, but it rarely flowers conspicuously. Its colorful foliage is the main ornamental feature, so a lack of flowers is normal.