Table of Contents
- Introduction
- The Short Answer: Do Begonias Climb?
- Understanding Different Begonia Growth Habits
- Meet the Climbing and Trailing Varieties
- How to Train a Begonia to Grow Vertically
- Essential Care for Climbing and Trailing Begonias
- Common Myths About Vertical Begonias
- Designing with Vertical Begonias
- Troubleshooting Vertical Growth
- Conclusion
- FAQ
Introduction
There is a special kind of excitement that comes with finding a plant that can transform a garden space. Whether you are looking to fill a bare wall with color or want a lush, cascading display from a hanging basket, begonias are often the first choice for many home gardeners. These versatile plants are beloved for their stunning foliage and reliable blooms. At Longfield Gardens, we enjoy helping people discover how these classic favorites can be used in new and creative ways to enhance their outdoor and indoor living spaces.
Many gardeners think of begonias as low-growing bedding plants or mounding container fillers. However, if you are looking to add height or a vertical element to your garden, you might wonder if trailing-scandent types can actually climb. While they do not behave exactly like ivy or clematis, certain varieties have growth habits that allow them to reach surprising heights or drape beautifully over supports.
This guide will explain which begonias are best for vertical interest and how you can encourage them to grow upward. We will cover the different types of begonias, their specific growth habits, and the simple steps you can take to get the best results. By the end, you will know exactly how to choose and care for a begonia that fits your vertical gardening goals.
The Short Answer: Do Begonias Climb?
The direct answer is that most common garden begonias, such as wax begonias or rex begonias, are not climbing plants. They generally grow in compact mounds or spreading clumps. However, there is a specific group of begonias known as "trailing-scandent" types. In the world of plants, "scandent" is a term used to describe a climbing growth habit.
These specific begonias grow long, flexible stems that can reach several feet in length. In their native tropical environments, they often grow as epiphytes, meaning they might be found clinging to tree trunks or rocks. In a home garden, these stems can be trained to grow up a trellis, a moss pole, or a decorative fence.
While they do not have "hands" or tendrils to grip onto a surface automatically, they are easy to guide. With a little bit of help from soft ties or a supportive structure, these varieties can create a stunning vertical wall of leaves and flowers.
Key Takeaway: Most begonias stay low to the ground, but "trailing-scandent" and certain cane-type begonias can be grown vertically with the right support.
Understanding Different Begonia Growth Habits
To understand which begonias can climb, it helps to look at how different varieties grow. Gardeners typically group begonias by their root systems or stem structures. Each type has a unique way of occupying space in your garden.
Mounding and Bedding Begonias
These are the most common types you will find at local garden centers. Wax begonias (Semperflorens) and many fibrous-rooted varieties fall into this category. They stay relatively short, usually between 6 and 12 inches tall. They are excellent for borders and flower beds because they fill in gaps quickly and create a neat, colorful carpet of flowers.
Rhizomatous and Rex Begonias
These varieties are primarily grown for their incredible foliage. They have thickened stems called rhizomes that grow horizontally along the surface of the soil. Because they grow outward rather than upward, they are not suitable for climbing. Rex begonias are best used in pots where their striking leaf patterns can be admired up close.
Trailing and Cascading Begonias
These are the superstars of hanging baskets. Varieties like Begonia boliviensis produce long, arching stems that spill over the sides of a container. While they naturally want to grow downward, these are the types that can often be repurposed for vertical growth. If you provide a trellis and gently tie the stems as they grow, they can be encouraged to move upward.
Cane-Like Begonias
Often called Angel Wing begonias, these plants have upright, sturdy stems that resemble bamboo canes. While they are not true climbers, they can grow very tall—sometimes reaching 5 to 8 feet. Because they grow straight up, they provide excellent vertical interest and can be used to create a tall, leafy screen in a shaded corner.
What to do next:
- Identify the area where you want vertical growth.
- Decide if you want a plant that hangs down (trailing) or grows tall (cane-type).
- Check the plant tag for keywords like "scandent," "trailing," or "cane."
Meet the Climbing and Trailing Varieties
If you are specifically looking for a begonia that can be trained to climb, you should look for specific species and hybrids. These are less common than standard bedding plants but are well worth the search for the unique look they provide.
Begonia Glabra
This is one of the most well-known scandent begonias. It features glossy green leaves and produces clusters of small white flowers. In its natural habitat, it uses its stems to scramble over rocks and up trees. In your home, it can be grown in a pot with a small trellis or a totem pole made of moss.
Begonia Solananthera
This variety is a favorite because of its fragrance. It has heart-shaped leaves and produces white flowers with bright red centers. It is naturally a trailer, but it is vigorous enough to be trained upward. The stems are flexible, making it easy to weave through a lattice.
Begonia Radicans
Also known as the "Shrimp Begonia," this plant earns its name from its profusion of deep coral or reddish-pink flowers. It has a graceful, branching habit. While it looks magnificent in a hanging basket, its branches can be supported to grow against a wall or up a post.
Begonia Luxurians
This is a cane-type begonia that looks like a small palm tree. It can grow quite tall, sometimes over 8 feet. While it does not climb in the traditional sense, it creates a massive vertical presence that mimics the look of a climbing tropical vine.
How to Train a Begonia to Grow Vertically
Since begonias do not have tendrils (like sweet peas) or sticky roots (like ivy), they need a little bit of manual assistance to "climb." Training them is a rewarding process that allows you to shape the plant to your specific space.
Choosing the Right Support
The first step is providing something for the stems to rest against.
- Moss Poles: These are excellent for indoor climbing begonias. The moss helps provide a bit of humidity, and the stems can be easily pinned to the pole.
- Trellises: A simple wooden or plastic trellis works well for outdoor pots. Choose a trellis with thin slats so it is easier to attach the stems.
- String or Wire: You can run vertical lines of garden twine or wire against a porch railing or a wall. This provides a subtle support system that eventually disappears behind the foliage.
Attaching the Stems
As your begonia grows, the new stems will be soft and flexible. This is the best time to guide them. Use soft garden ties, strips of old nylon stockings, or even pieces of twine. Loop the tie loosely around the stem and then secure it to the support. Avoid tying them too tightly. Begonia stems are somewhat brittle and can snap if they are restricted too much. They also need room to thicken as the plant matures.
Pruning and Pinching
To get a full, lush look on your vertical support, you need to encourage branching. "Pinching" is the simplest way to do this. Use your thumb and forefinger to snip off the very tip of a growing stem. This tells the plant to stop growing in a single long line and instead start growing new shoots from the nodes below. This creates a denser "wall" of leaves rather than a few thin, leggy strands.
Key Takeaway: To make a begonia "climb," you must provide a support and manually secure the stems using soft ties. Regular pinching will ensure the plant looks full and healthy.
Essential Care for Climbing and Trailing Begonias
Growing begonias vertically requires slightly different care than growing them in the ground. Because they are often in pots or elevated positions, they are more exposed to air and light.
Light Requirements
Most begonias that are suitable for climbing or trailing prefer bright, indirect light. In the garden, this means a spot with "dappled shade." A location that gets gentle morning sun and afternoon shade is perfect. If they get too much direct midday sun, the leaves may pale or scorch. If they get too little light, the stems will become "leggy," meaning the space between the leaves gets very long and the plant looks thin.
Soil and Drainage
"Drainage" is a term gardeners use to describe how fast water leaves the soil. Begonias have shallow roots and do not like to sit in soggy earth. Whether you are planting in a container or the ground, use a light, airy potting mix. At Longfield Gardens, we recommend a mix that includes peat moss or perlite to keep the soil loose. This ensures that the roots get the oxygen they need while still staying moist.
Watering Correctly
The best rule for watering is to check the soil with your finger. If the top inch feels dry, it is time to water. For plants in hanging baskets or on moss poles, they may dry out faster than those in the ground. Water deeply until you see it coming out of the drainage holes at the bottom of the pot, then let it dry out slightly before watering again.
Humidity
Since many climbing begonias are tropical in origin, they appreciate humidity. If you are growing them indoors, placing a small humidifier nearby or misting the leaves can help. For outdoor plants, grouping them with other plants can create a small microclimate that holds moisture in the air.
What to do next:
- Place your plant in a spot with bright, filtered light.
- Use a high-quality, well-draining potting soil.
- Water only when the top of the soil feels dry.
- Check your ties every few weeks to make sure they aren't getting too tight as the stems grow.
Common Myths About Vertical Begonias
There is a lot of information online about begonias, and some of it can be confusing for beginners. Let's clear up a few common misconceptions.
Myth 1: Any begonia can be trained to climb. This is not true. If you try to train a wax begonia or a rex begonia to climb, you will likely end up with a stressed or broken plant. These varieties simply don't have the stem length or flexibility to grow vertically. Always start with a variety known for trailing or scandent growth.
Myth 2: Climbing begonias will damage your walls. Unlike English Ivy, which has "holdfasts" that can dig into mortar and wood, begonias do not attach themselves directly to structures. Since you have to provide the support and tie the plant to it, there is no risk of the plant damaging your siding or brickwork.
Myth 3: You need special fertilizers to make them climb. While a balanced fertilizer helps any plant grow, there isn't a "climbing" formula. The vertical growth comes from the plant's genetics and the physical support you provide. Use a standard liquid fertilizer every few weeks during the growing season to keep the foliage vibrant and the blooms coming.
Designing with Vertical Begonias
Using vertical space is a great way to make a small garden feel much larger. Begonias offer a softer, more romantic look than many other climbing vines.
Vertical Wall Planters
If you have a shaded patio wall, a series of wall-mounted planters can be filled with trailing begonias. As they grow, they will eventually cover the containers, creating a "living wall" effect. The vibrant oranges and reds of Begonia boliviensis are particularly striking against dark wood or stone.
Mixed Hanging Baskets
To get the most out of a hanging basket, try a "thriller and spiller" approach. Plant a taller cane-type begonia in the center as the "thriller" to provide height. Then, plant trailing varieties around the edges as the "spillers." This gives you a full, three-dimensional look that fills the space beautifully.
Moss Totems for Indoor Spaces
For indoor gardeners, a begonia on a moss pole can be a conversation piece. This is a great way to use the "Angel Wing" types. As they grow tall, their spotted leaves look like a vertical work of art. Because they are contained to the pole, they don't take up much floor space, making them ideal for apartments.
Troubleshooting Vertical Growth
If your begonia isn't reaching the heights you hoped for, it is usually due to one of three things: light, water, or lack of support.
If the plant is "leggy" (long stems with few leaves): This is the plant's way of reaching for more light. Move it to a brighter spot, but avoid harsh, direct sun. You should also pinch back the tips of the stems to encourage it to fill out.
If the stems are breaking: Begonia stems are succulent, which means they hold a lot of water and can be heavy. If they aren't tied securely to their support, the weight of the leaves and flowers might cause them to snap. Add more ties or a sturdier trellis.
If the leaves are turning yellow: This is often a sign of overwatering. Make sure your pot has drainage holes and that you aren't letting the plant sit in a saucer of water. Remember: water deeply, then let the soil dry a bit.
Conclusion
Gardening is a rewarding journey of discovery, and finding the right plants to fill your space is part of the fun. While not all begonias are climbers, the trailing and scandent varieties offer a unique and beautiful way to add vertical interest to your home and garden. Whether you choose the fragrant blooms of Begonia solananthera or the striking height of a cane-type "Angel Wing," these plants are sure to bring a touch of tropical elegance to your surroundings.
At Longfield Gardens, we are committed to providing you with the highest quality plants and the practical knowledge you need to see them thrive. We want every gardener to feel confident and inspired to try something new. By choosing the right variety and providing a little bit of support, you can create a stunning vertical display that will be the highlight of your garden season.
Final Thought: Vertical gardening with begonias is an easy win for any shade gardener. Start with a trailing variety, provide a simple trellis, and enjoy the upward journey of these beautiful plants.
To get started on your own vertical garden, we encourage you to explore our selection of begonias and other shade-loving plants and check our shipping information. Our team is always here to support you with quality products and simple advice to help your garden grow.
FAQ
Can I grow climbing begonias in full sun?
Most begonias, especially trailing and scandent types, prefer partial shade or filtered light. Full midday sun can be too intense and may scorch the delicate leaves. A spot that receives morning sun and afternoon shade is usually the best environment for healthy growth.
Do climbing begonias need a trellis?
Since begonias do not have natural gripping mechanisms like tendrils or adhesive roots, they do need a support structure if you want them to grow upward. A trellis, moss pole, or even a simple fence will work, provided you manually secure the stems to the support with soft ties.
How fast do climbing begonias grow?
The growth rate depends on the variety and the environment, but most trailing begonias are moderate growers. In warm, humid conditions with the right amount of light, they can put on several inches of growth each month during the peak growing season. Regular fertilizing also helps maintain a steady pace.
What is the best way to attach a begonia to a support?
It is best to use soft, flexible materials like garden ties, strips of cloth, or loose twine. You should loop the tie around the stem and the support loosely to allow the stem room to grow and thicken over time. Avoid using thin wires that could cut into the succulent stems.