Caladium ‘Sweetheart’ is a strap‑leaf cultivar of Caladium × hortulanum (derived from Caladium bicolor), appreciated for its rich rose‑pink, heart‑shaped leaves with a delicate green margin. The lance‑leafed foliage emerges upright and forms a compact clumping habit, typically reaching under 30 cm in height with a similar or slightly broader spread, making it an excellent choice for container cultivation indoors. 

Native to tropical South and Central America, the wild species from which this cultivar derives—Caladium bicolor—grows in shaded, humid forest understories across the region. ‘Sweetheart’ retains the lance-shaped, heart‑like leaves characteristic of its heritage. 

Native to: Tropical South and Central America.

Water: Keep the potting medium consistently moist during the active growth period. A practical guideline is around 0.5 cups every 9 days for a 5‑inch pot when not exposed to direct sunlight. In winter dormancy, reduce watering significantly or cease until new growth appears. 

Light: Prefers bright, filtered light in indoor settings. Avoid direct sun, which can scorch the delicate foliage. Though some caladium cultivars are sun-tolerant, ‘Sweetheart’, like most fancy‑leaf types, performs best in indirect or partial shade.

Humidity: Requires moderate to high humidity—aim for above 60%. If humidity is sustained above 70%, it is well-suited to terrarium cultivation due to its compact size and leaf structure, provided it doesn’t grow overly large. 

Temperature: Thrives at 20–27 °C. Maintain indoor temperatures above 18 °C as growth slows below this, and dormancy risk increases below approximately 15 °C.