Begonia ‘Don Miller’ is a hybrid known for its distinctive foliage and growth habit. This shrub-type begonia is a cross between the cane hybrid ‘Torch’ and a shrub species. Its striking appearance features bright green leaves adorned with prominent red and silver markings. The leaves can be notably large. This variety also produces pink flowers that deepen to rosy red when exposed to more direct sunlight.
Begonia Don Miller Care
Begonia ‘Don Miller’ prefers bright, indirect light, ideally around six hours daily. While it can tolerate medium light, its vibrant leaf coloration may be less pronounced. Direct sunlight, especially during peak sun hours, should be avoided as it can cause leaf burn. Positioning the plant for filtered light or morning sun is beneficial.
The plant requires well-draining soil to prevent water accumulation around the roots, which can lead to root rot. Water when the top two inches of soil feel dry to the touch. Water thoroughly until excess water drains from the pot, then remove any standing water from the saucer. Inconsistent watering or allowing the plant to dry out completely can hinder new growth and damage the root system.
This begonia benefits from high humidity. It thrives in high-humidity environments, suitable for areas like bathrooms or kitchens. Avoid wetting leaves during watering to prevent powdery mildew. Brown edges on the leaves can indicate a need for increased humidity.
For Begonia ‘Don Miller’, a soil mix promoting drainage and aeration is suitable. A light potting soil with added perlite is recommended, a mixture of two-thirds potting soil and one-third perlite. This mix prevents waterlogging and ensures adequate oxygen for roots.
Begonia ‘Don Miller’ benefits from regular feeding during its active growth phases. A balanced liquid fertilizer applied once a month throughout spring and summer is appropriate. Ensure the soil is adequately moist before applying fertilizer, and refrain from fertilizing dry soil. Reducing or ceasing fertilization during winter dormancy is recommended.
Begonia ‘Don Miller’ prefers a consistent temperature range. It performs well between 65 and 75 degrees Fahrenheit (18-24 degrees Celsius). Avoid extreme fluctuations. Temperatures below 45 degrees Fahrenheit (7 degrees Celsius) or above 100 degrees Fahrenheit (38 degrees Celsius) can stress the plant. Protecting the plant from cold drafts and sudden temperature drops is beneficial.
Propagating Begonia Don Miller
Propagating Begonia ‘Don Miller’ is achieved through stem cuttings. Select a healthy stem section with at least two nodes and a few leaves. Make a clean cut just below a node using sharp, sterilized shears. Remove the lower leaves to expose the nodes.
The cutting can then be rooted in water or a well-draining potting mix. If rooting in water, place the cutting with nodes submerged in clean water. Change the water every few days to prevent bacterial growth. For rooting in soil, insert the cut end into the recommended mix of two-thirds potting soil and one-third perlite.
Maintain high humidity around the cutting by covering it with a plastic bag or placing it in a propagation dome. Provide bright, indirect light and a consistent warm temperature. Roots form within a few weeks, then pot the new plant into its permanent growing medium.
Troubleshooting Common Problems
Begonia ‘Don Miller’ may encounter pest issues, such as spider mites and mealybugs. Mealybugs appear as small, white, cottony masses, often found in leaf axils or along stems, leading to stunted growth and yellowing leaves. Spider mites are tiny pests causing stippling on leaves and fine webbing, particularly on the undersides. Inspecting plants regularly helps identify infestations early.
For minor infestations, wiping affected areas with a damp cloth or a cotton swab dipped in rubbing alcohol removes pests. For more persistent problems, applying an insecticidal soap or neem oil solution according to product instructions is effective. Ensuring good air circulation around the plant also helps deter pests.
Ailments include powdery mildew and root rot. Powdery mildew appears as white, powdery spots on leaves and stems, often occurring in humid conditions with poor air circulation. Root rot, characterized by wilting and yellowing leaves despite moist soil, results from overwatering and inadequate drainage.
To address powdery mildew, improve air circulation and avoid overhead watering. Severely affected leaves should be removed. Fungicides formulated for powdery mildew can be applied if persistent. Preventing root rot involves using well-draining soil and allowing the top layer of soil to dry out between waterings. If root rot is suspected, remove the plant from its pot, trim affected roots, and repot in fresh, dry soil.