How to Properly Care for Rex Begonias Indoors
Rex begonias are beloved for their striking and colorful foliage, often featuring vibrant shades of red, pink, green, burgundy, silver, and much more. This guide will help you successfully care for your rex begonia, ensuring it thrives indoors.Optimal Growing Conditions
Moisture and Humidity
Rex begonias thrive in environments with a humidity level of around 55%. As the air dries, turning on a humidifier can help maintain the ideal moisture. Use distilled water for misting and watering, as tap water can contain minerals that may harm the plant.Watering
Watering rex begonias requires a delicate balance. Overwatering can lead to root rot, whereas underwatering can cause stress and wilting. The key is to let the soil surface dry slightly between waterings, ensuring the plant does not stay too wet for too long.Drainage
Ensure your pots have proper drainage holes to prevent water from accumulating. Aggressive drainage is crucial; the excess water should not remain in the soil after watering.Overpotting
These delicate plants prefer to be slightly root-bound, as overpotting can lead to issues. Use pots that are just large enough to accommodate the roots; if your begonia needs a larger pot, increase the size only by a maximum of 1/2" or 1". Maintain the soil level relative to the stem to avoid covering the crown, which is the point where the roots and the stem meet and should remain above ground.Light Requirements
Rex begonias are adaptable to various light conditions. They can thrive in climates ranging from bright indirect light to partial shade. However, they need at least a few hours of direct sunlight each day to maintain their vibrant colors and encourage flowering. A good location is a bright spot with some filtered light, such as near a west or east-facing window.Feeding Your Rex Begonia
Monthly feedings are necessary to ensure your rex begonia remains healthy and lush. Use a balanced, water-soluble fertilizer diluted to half the recommended strength. Apply the feeding during the growing season (spring and summer) and reduce or stop feeding during the dormant period (fall and winter).