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The Suspended Hearts

Dragon Heart Caladium

Caladium hybrid, Dragon Heart

Colorful hearts rise on slender stalks. Give caladium warmth, filtered light and attentive seasonal care.

Explore the care guide
Botanical illustration

Care at a glance

Know your plant

Dragon Heart is grown for colorful heart-shaped foliage. Garden caladiums alternate leafy growth from an underground storage organ with a resting period. [1]

Light and placement

Start in bright indirect light indoors or a sheltered, partly shaded outdoor position. Caladium sun tolerance varies by cultivar; a red or pink leaf does not by itself call for stronger sun. [1]

Watering

During active leafy growth, maintain even moisture. Check the surface and root zone before watering, then wet the mix and let it drain. Avoid both a dried-out root ball and a permanently saturated pot. [1]

When the plant gradually finishes its leafy season, reduce watering as the leaves fade. Once dormant, keep the resting pot dry; resume cautiously when new growth begins. Sudden collapse in wet soil needs inspection for rot. [2]

Soil and pot choice

Use fertile, organic-rich potting mix that holds moisture while draining freely. Choose a container with holes, and shelter fragile leaves from strong wind or repeated handling. [3]

Temperature and humidity

Warmth matters, particularly when restarting a tuber. Wait for warm conditions near 70°F (21°C) before starting growth; cold, wet mix encourages rot. Protect foliage from frost and cold drafts. [1]

Provide humid room air during growth. A clean humidifier can help in a dry room; maintain air movement rather than sealing a leafy plant in still, wet conditions. [5]

Feeding

Feed regularly while producing leaves, using a balanced or low-nitrogen fertilizer at its labeled rate. Excess nitrogen can reduce the intended color display. [2]

Keep fertilizer off foliage, account for nutrients already in the mix, and stop routine feeding during dormancy. Do not feed a cold, collapsing or rotting plant. [6][3]

Repotting

  1. Repot a growing plant only when roots crowd its pot or the medium drains poorly. Support the root ball and keep its previous depth; delicate stalks should not carry the plant’s weight. [7][3]

  2. For a dormant restart, use a firm, healthy tuber. Position the knobby bud side upward in fresh mix, cover lightly, and provide warmth. Add moisture cautiously until new growth begins. [2]

Propagation

  1. Divide a healthy dormant tuber before spring potting. Use a clean sharp blade and give each piece at least one viable eye; allow the cut faces to dry for several days before planting. [2]

  2. Restart divisions warmly, avoiding saturated mix. A detached leaf without tuber and bud is not a viable division. [2]

Pruning and foliage care

Remove spent foliage carefully with clean tools. Preserve healthy leaves; pruning does not reliably create a chosen color pattern. [3]

Problems and next checks

Gradual seasonal yellowing can mark dormancy. Sudden drooping in cold, wet mix, especially with a soft tuber, points toward damage instead: correct conditions and seek advice if tissue continues to soften. [3]

Scorched patches: review strong sun, dry roots and fertilizer contact. Torn leaves: inspect wind exposure and handling. Keep conditions steady and judge improvement from new leaves rather than expecting old damage to disappear. [3][1]

Seasonal care

A leafy caladium can rest indoors after its display. Let foliage finish, keep the dormant pot dry and above 55°F (13°C), and restart with warmth and new growth. Do not force watering merely because spring has arrived. [2]

Children and pets

Safety

Garden caladiums contain insoluble calcium oxalates. Chewing can cause intense mouth irritation, drooling, vomiting and difficulty swallowing in cats and dogs. Keep leaves, fallen material and tubers inaccessible to pets. [4]

Caladium is also harmful if eaten by people. Sap can irritate skin; wear gloves for division or pruning and wash hands afterwards. [3]

Prevent children chewing plants; label pots. [8]

Human poisoning (U.S.): 1-800-222-1222. Medical emergencies: 911. [9]

Pet poisoning: veterinarian; ASPCA 888-426-4435 (consultation fee). [10]

Similar plants

Fancy-leaved caladiums have broad hearts; lance-leaved types are narrower. Names such as elephant ear also cover other genera, so keep the botanical label. [1]

Sources

  1. Caladiums

    University of Florida IFAS

    Accessed October 5, 2026

  2. Caladiums

    University of Wisconsin-Madison Extension

    Accessed October 5, 2026

  3. Caladium bicolor

    NC State Extension

    Accessed October 5, 2026

  4. Caladium

    ASPCA Poison Control

    Accessed October 5, 2026

  5. Indoor Plant Care, HO-39-W

    Purdue University Cooperative Extension Service

    Accessed October 5, 2026 · Updated: Reviewed May 2001

  6. Fertilizer for Indoor Plants

    University of Maryland Extension

    Accessed October 5, 2026 · Updated: 2023-03-10

  7. Indoor Plants - Transplanting and Repotting, HGIC 1458

    Clemson Cooperative Extension

    Accessed October 5, 2026 · Publisher date: 1999-09-21

  8. Know the Plants in Your Garden — For Your Child’s Safety

    Children’s Hospital of Philadelphia

    Accessed October 5, 2026 · Publisher date: 2019-07-08

  9. Need immediate assistance?

    National Capital Poison Center

    Accessed October 5, 2026

  10. ASPCA Poison Control

    ASPCA Poison Control

    Accessed October 5, 2026