1. Which soil to choose? The best soil for the heart of Jesus should be well-drained, and it should be full of organic matters, such as composted leaves, etc. Give a preference to universal or premium potting mixes.
2. How much fertilizer does it need? These plants don’t require a lot of fertilizer; in fact, too much of it can damage the plant. You can use liquid fertilizer or a controlled-release one.
3. How to choose the pot? The pot size needs to be twice as large as tubers; for example, for a tuber of about 5 cm (1 inch), you will need a pot of about 10-12 cm (3-7 inches).
4. How to prevent diseases? Since caladiums grow from tubers, the tubers are the first ones to be attacked by diseases, usually caused by fungus. To avoid such a problem, drench tubers in hot water (about 50°C (122°F) before planting to kill fungus, check if it’s dry, and finally plant it.