How to Grow Rex Begonia Plant Outdoors

Rex Begonias are stunning plants that can add a touch of elegance and sophistication to any outdoor space. Known for their vibrant foliage and unique patterns, they are a favorite among gardeners and plant enthusiasts alike.

While Rex Begonias are typically grown indoors as houseplants, they can also thrive in outdoor gardens if provided with the right conditions. In this article, we will explore the steps to successfully grow Rex Begonia plants outdoors and enjoy their beauty in your garden.

Choosing the Right Location

When selecting a location for your Rex Begonia plant, it is crucial to consider the lighting requirements. These plants prefer bright, indirect light but cannot tolerate direct sunlight. Find a spot in your garden that receives partial shade throughout the day, such as under a tree canopy or near a building that provides some shade.

Additionally, it is essential to choose a location that offers protection from strong winds. Rex Begonias have delicate foliage, which can easily get damaged by strong gusts of wind. Planting them in an area shielded from harsh winds will help ensure their well-being.

Soil Preparation and Planting

Rex Begonias thrive in well-draining soil that is rich in organic matter. Before planting, amend the soil with compost or well-rotted manure to improve its fertility and drainage capabilities. This will create an ideal growing environment for your Rex Begonia plants.

Dig a hole slightly larger than the root ball of the plant and place it in the hole at the same depth it was growing in its nursery container. Backfill the hole with the amended soil, gently pressing it down to remove any air pockets around the roots. Water thoroughly after planting to settle the soil.

Watering and Humidity

Rex Begonias require consistent moisture but dislike soggy conditions. Water your plants regularly, especially during dry periods, ensuring that the soil remains evenly moist. However, be cautious not to overwater them, as this can lead to root rot.

To maintain adequate humidity levels, consider using a pebble tray or misting the foliage regularly. This is especially important in dry climates or during the hot summer months when the air tends to be drier. Rex Begonias appreciate higher humidity levels and will reward you with lush, healthy foliage if provided with the right amount of moisture.

Fertilizing and Pruning

To encourage healthy growth and vibrant foliage, fertilize your Rex Begonia plants regularly during the growing season. Choose a balanced, water-soluble fertilizer and apply it according to the manufacturer’s instructions. Avoid over-fertilizing, as this can cause leaf burn and damage the plant.

Pruning is not necessary for Rex Begonias unless you want to shape or control their size. If your plants become leggy or develop uneven growth, you can trim back the stems to promote bushier growth. Additionally, remove any dead or yellowing leaves to maintain the plant’s overall appearance and health.

Winter Care

Rex Begonias are not cold-hardy plants and cannot tolerate freezing temperatures. As winter approaches, it is essential to take proper care of your outdoor Rex Begonias to ensure their survival.

Before the first frost, gently dig up your plants and pot them in containers. Trim back any excessive growth to reduce stress on the roots. Place the potted plants in a bright, cool location indoors, such as a greenhouse or a well-lit room with temperatures between 60-70°F (15-21°C).

During the winter months, water your potted Rex Begonias sparingly, allowing the soil to dry out slightly between waterings. They will enter a semi-dormant state during this time, requiring less water and fertilizer.

Common Pests and Diseases

Rex Begonias are relatively resistant to pests and diseases, but they can occasionally encounter problems. The most common pests that may affect outdoor Rex Begonias include aphids, mealybugs, and spider mites.

Regularly inspect your plants for signs of infestation, such as yellowing leaves, sticky residue, or tiny webs. If you notice any pests, treat them immediately with an insecticidal soap or a horticultural oil spray. Be sure to follow the instructions on the product label and repeat the treatment as necessary.

Conclusion

Growing Rex Begonia plants outdoors can be a rewarding experience for any gardener. With their stunning foliage and unique patterns, they can transform any garden into a vibrant and colorful oasis. By choosing the right location, providing adequate water and humidity, fertilizing appropriately, and taking care during winter, you can enjoy the beauty of these exquisite plants in your outdoor space. So why not give it a try and create a stunning display with Rex Begonias in your garden?