Tuberous begonias are a beautiful flowering plant that is popular for its large, showy blooms and lush green foliage. But sometimes, the leaves of the plant can start to curl, leaving gardeners wondering what they did wrong. In this article, we will discuss the various reasons why tuberous begonia plant leaves may curl and provide tips on how to prevent or fix the issue.
One of the most common reasons for curling leaves in tuberous begonias is overwatering. While tuberous begonias require regular watering, too much water can lead to root rot, which can cause the leaves to curl and wilt. Overwatered plants may also have yellow or brown spots on their leaves.
If you suspect overwatering is causing your tuberous begonia’s leaves to curl, reduce the frequency of watering. Allow the soil to dry out slightly before watering again. If the plant has root rot, remove it from its pot and inspect the roots. Trim away any damaged roots and replant in fresh potting soil.
On the other hand, underwatering can also cause tuberous begonia plant leaves to curl. When a plant does not receive enough water, it will conserve moisture by curling its leaves inward.
To prevent underwatering, water your tuberous begonia regularly, but do not let it sit in standing water. Check the soil regularly and water when the top inch feels dry.
Tuberous begonias are tropical plants that thrive in warm temperatures between 60-75°F (15-24°C). However, if the temperature drops below 50°F (10°C), or rises above 90°F (32°C), the plant may experience temperature stress, which can cause leaves to curl.
If your tuberous begonia is experiencing temperature stress, move it to a more suitable location. Ensure the plant is not exposed to direct sunlight or cold drafts.
Pests and diseases can also cause tuberous begonia plant leaves to curl. Spider mites, thrips, and aphids are common pests that can infest tuberous begonias. In addition, diseases such as powdery mildew, botrytis, and bacterial leaf spot can cause leaves to curl and wilt.
To prevent pests and diseases, ensure your tuberous begonia is planted in well-draining soil and receives adequate air circulation. Regularly inspect your plants for signs of pests or diseases, and treat them promptly with an appropriate insecticide or fungicide.
Finally, it’s worth noting that some tuberous begonias may be genetically predisposed to curling leaves. Some cultivars naturally have more curled leaves than others.
In this case, there is nothing to fix. Enjoy your tuberous begonias for their unique traits.
A: Water your tuberous begonia regularly, but do not let it sit in standing water. Check the soil regularly and water when the top inch feels dry.
A: Ensure your tuberous begonia is planted in well-draining soil and receives adequate air circulation. Regularly inspect your plants for signs of pests or diseases, and treat them promptly with an appropriate insecticide or fungicide.
A: No, some cultivars naturally have more curled leaves than others.