Popular rex begonias are technically a subset of the rhizomatous category, but they’re often grouped separately because they are a bit more difficult to grow. ‘Rex’ means ‘king’ in Latin, a fitting name this group with the biggest, most extravagant leaves.
Cane begonias need bright, indirect sunlight. Rhizomatous and rex begonias prefer a bit more shade. If leaves appear scorched, move your plant to a less sunny spot.
Striking the right balance with watering is the biggest challenge when growing begonias. Ideally, the soil should be slightly damp at all times, but not too wet because begonias are very sensitive to overwatering and can easily develop root rot.
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