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Caladiums are popular ornamental plants known for their vibrant, colorful foliage. They are versatile and can be grown both indoors and outdoors, but their care requirements differ depending on the environment. Understanding these differences helps ensure healthy growth and stunning displays.
Indoor Caladium Care
Growing caladiums indoors allows for controlled conditions, but it also requires attention to light, temperature, and watering. Indoors, they thrive in bright, indirect light. Direct sunlight can scorch their delicate leaves, so placing them near east- or west-facing windows is ideal.
Temperature regulation is crucial indoors. Caladiums prefer warm temperatures between 65°F and 80°F (18°C to 27°C). Avoid cold drafts and sudden temperature drops, which can damage the plant.
Watering should be consistent but not excessive. Keep the soil moist, but avoid waterlogging. Reduce watering during dormancy in winter when the plant’s growth slows down. Humidity levels should be moderate to high; misting or using a humidity tray can help.
Indoor caladiums benefit from regular fertilization. Use a balanced, water-soluble fertilizer every 4-6 weeks during the growing season to promote vibrant foliage.
Outdoor Caladium Care
Outdoor caladiums are typically grown in garden beds or large containers. They require a warm, shaded location to thrive. Full sun can scorch their leaves, so partial shade or filtered sunlight is best, especially in hot climates.
Soil drainage is critical outdoors. Caladiums prefer rich, well-draining soil with high organic matter. Mulching helps retain moisture and keeps roots cool during hot weather.
Watering outdoors should be regular, especially during dry spells. Keep the soil consistently moist but not waterlogged. During peak summer heat, watering more frequently is necessary to prevent wilting.
Fertilize outdoor caladiums every 4-6 weeks with a balanced fertilizer. Applying organic compost around the base can also boost growth and foliage color.
Additional Differences and Tips
- Temperature tolerance: Indoor caladiums are protected from cold, while outdoor plants need to be dug up or moved indoors when temperatures drop below 60°F (15°C).
- Growth cycle: Outdoors, caladiums grow actively in summer and go dormant in winter. Indoors, they can be kept growing year-round with proper care.
- Protection from pests: Indoors, caladiums are less susceptible to pests like slugs and snails, which are common outdoors.
- Container choice: For outdoor containers, ensure they have drainage holes and are large enough to accommodate growth.
By adjusting care routines based on their environment, gardeners can enjoy healthy, vibrant caladiums whether indoors or outdoors. Proper light, watering, temperature, and soil conditions are key to their success.