How to Grow and Care for Rex Begonias

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Want to add a touch of exotic beauty to your home? This guide provides everything you need to know about growing and caring for vibrant Rex Begonias.

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Light Rex begonias crave bright, indirect light to maintain their vibrant colors. Think of them as sunbathers who prefer a beach umbrella. Direct sunlight can scorch their delicate leaves (ouch!), so an east- or west-facing window is ideal.

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Soil To prevent soggy roots and unhappy begonias, well-draining potting soil is essential. A mix of peat moss, perlite, and vermiculite will provide the perfect balance of moisture retention and aeration. Aim for a slightly acidic pH (6.0-6.5) for optimal nutrient uptake.

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Watering Watering rex begonias requires a delicate balance. They like their soil moist but not soggy. Allow the top inch of soil to dry out before watering thoroughly. Always use lukewarm water to avoid shocking the roots.

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Fertilizing During the growing season (spring and summer), fertilize your rex begonia lightly with a balanced liquid fertilizer diluted to half strength. Reduce or stop fertilizing in fall and winter when growth slows down.

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Temperature and Humidity Rex begonias enjoy average room temperatures (65-75°F). They also thrive in moderate to high humidity, mimicking their natural tropical environment. However, avoid misting the leaves directly, as this can lead to powdery mildew.

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Follow along to learn more about how to grow rex begonias.

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