Table of Contents
- Introduction
- Choosing the Best Begonias for Baskets
- When to Start Your Begonia Tubers
- Preparing Your Hanging Basket
- Step-by-Step Guide to Planting Begonia Tubers
- Light and Location Requirements
- Watering for Success
- Feeding Your Begonias
- Maintaining Your Basket Through the Season
- Overwintering Begonia Tubers
- Creative Companion Plants
- Enjoying Your Display
- Conclusion
- FAQ
Introduction
There is a unique kind of magic in watching a hanging basket transform from a simple container into a lush, cascading waterfall of color. Tuberous begonias are the undisputed stars of the shade garden, offering some of the most spectacular and reliable blooms you can grow. At Longfield Gardens, we love how these versatile plants turn porch eaves and patio corners into vibrant focal points with very little effort. Browse our Hanging Begonias collection to find trailing varieties made for baskets.
This guide will walk you through the rewarding process of planting a begonia hanging basket, from choosing your tubers to maintaining a season-long display. For a broader overview, see our All About Begonias guide.
Growing begonias in baskets is an accessible way to add vertical interest to your outdoor living spaces. This article covers everything you need to know about tuber selection, planting techniques, and ongoing care for a thriving basket. Success with begonia hanging baskets comes down to starting with high-quality tubers and providing the consistent moisture and light they crave.
Choosing the Best Begonias for Baskets
Not all begonias are created equal when it comes to hanging displays. While some varieties grow upright and are perfect for garden beds, others have a natural "pendulous" or trailing habit. These varieties are specifically bred to spill over the edges of a container, creating that classic draped effect.
Tuberous begonias are the most popular choice for high-impact baskets. If you want to see the full range, browse our Begonia Flower Bulbs for Sale collection. Because the tubers store energy and moisture, they provide the plant with a strong foundation for producing large, showy flowers. Within the world of tuberous begonias, you can choose between several stunning forms, and our Non-Stop Begonias collection is a strong choice for a classic container display.
Trailing and Pendula Varieties
Trailing begonias, often labeled as "Pendula," are designed by nature for life in a basket. Their stems are more flexible than upright types, allowing them to arch gracefully under the weight of their blooms. Varieties like Begonia Hanging Golden Balcony produce masses of flowers that look like a floral fountain.
Scented and Specialty Types
If you want to add an extra dimension to your porch, consider scented varieties. Fragrant options such as Begonia Upright Double Odorata White offer a light, sweet fragrance alongside their ruffled, rose-like petals. These are wonderful for hanging near eye (and nose) level where their scent can be appreciated.
Foliage Considerations
While the flowers are the main event, the foliage of a begonia is equally beautiful. Many basket-friendly begonias feature deep green, wing-shaped leaves with serrated edges. Some varieties even have a bronze tint or subtle veining that adds texture to your display even when the plant is between bloom cycles.
Key Takeaway: For the best hanging display, always look for varieties labeled as "trailing," "pendula," or "cascade." These have the flexible stems needed to create a beautiful, overflowing look.
When to Start Your Begonia Tubers
Timing is one of the most important factors in gardening success. Begonias are tender perennials, meaning they are sensitive to cold and cannot handle frost. Because they take a little while to get established and reach their full blooming potential, we recommend starting them indoors before the weather warms up.
Early Spring Starting
In most parts of the United States, March or April is the ideal time to start your begonia tubers indoors. If you'd like a step-by-step refresher, see How to Start Tuberous Begonias Indoors. Starting them 8 to 12 weeks before the last expected frost gives the plants a significant head start. By the time the weather is warm enough to move them outside, you will have well-developed plants ready to bloom.
Watching the Temperature
Begonias thrive when temperatures are consistently warm. They should only be moved to their permanent outdoor home once nighttime temperatures stay reliably above 50°F. If a late spring cold snap occurs, it is easy to bring your hanging baskets back inside for a night or two to keep them cozy.
Preparing Your Hanging Basket
Before you start planting, you need to choose and prepare the right container. A good hanging basket needs to balance two things: holding enough moisture for the plants and allowing excess water to drain away.
Selecting a Container Size
A 10-inch to 12-inch basket is a standard size for a beautiful display. A larger basket holds more soil, which means it stays hydrated longer during the heat of summer. For a 12-inch basket, you can typically plant three to four tubers to achieve a full, lush look.
Liners and Drainage
If you are using a wire basket, you will need a liner. Coir (coconut fiber) or moss liners are popular choices because they look natural and allow for excellent drainage. If you find that coir liners dry out too quickly in your climate, you can place a plastic saucer or a piece of a plastic potting bag with a few holes poked in it at the bottom of the liner to help retain a little extra moisture.
The Right Potting Mix
Always use a high-quality, well-draining potting soil rather than garden soil. Garden soil is too heavy for containers and can pack down, preventing air from reaching the roots. A mix that includes peat moss or coco coir and perlite provides the light, airy environment begonia roots love.
Step-by-Step Guide to Planting Begonia Tubers
Planting a begonia tuber is a simple process, but there is one specific detail to get right: which side faces up. Once you identify the correct orientation, the rest is easy.
Identifying the Top of the Tuber
Begonia tubers have a distinct shape. One side is slightly indented or "concave," looking a bit like a shallow bowl. The other side is rounded or "convex." The indented side is the top, where the new growth will emerge. Sometimes you may even see small pink or white buds, called "eyes," already starting to sprout in the hollow area.
Starting in Trays (The "Pre-Sprout" Method)
Many gardeners prefer to start tubers in a shallow tray before moving them to the final hanging basket. This allows you to monitor their early growth more closely.
- Fill a shallow tray with 2 or 3 inches of moist potting mix.
- Place the tubers on the surface with the indented side facing up.
- Press them gently into the soil so they are mostly covered, but leave the very top of the tuber exposed.
- Keep the tray in a warm, bright spot (but not in direct, hot sun).
Moving to the Hanging Basket
Once the tubers have sprouted stems that are about 1 or 2 inches tall, they are ready to move to their permanent basket.
- Fill your hanging basket about two-thirds full with moist potting mix.
- Carefully lift the sprouted tubers from their tray, keeping as much of the young root system intact as possible.
- Arrange the tubers in the basket. For a 12-inch basket, place three tubers in a triangle shape near the edges.
- Cover the tubers with another inch of soil, ensuring the base of the new stems is buried but the leaves remain above the soil line.
- Water gently to settle the soil around the roots.
What to Do Next:
- Check the orientation of your tubers (indented side up).
- Keep the soil moist but never soggy during the sprouting phase.
- Provide plenty of indirect light to prevent the stems from becoming leggy.
Light and Location Requirements
Finding the perfect spot for your begonia hanging basket is the key to keeping the foliage lush and the flowers plentiful. Begonias are famous for their ability to brighten up shady areas, but "shade" can mean different things.
The Beauty of Filtered Light
Most trailing begonias prefer bright, indirect light or dappled shade. A spot under a covered porch, a north-facing entryway, or beneath the canopy of a large tree is usually ideal for Begonia Hanging Pink Balcony. These locations provide enough light for the plant to produce energy without the intense heat of the midday sun.
Protecting from Direct Sun
The succulent leaves and delicate petals of tuberous begonias can scorch if they are exposed to harsh, direct afternoon sunlight. If you notice the edges of the leaves turning brown or crispy, it is a sign the plant might be getting too much sun. Shifting the basket just a few feet into a more protected area often solves the problem.
Wind Protection
Because trailing begonias have heavy blooms and somewhat brittle stems, they appreciate a spot that is protected from strong, gusty winds. A sheltered corner or a sturdy porch beam will keep your basket safe from being tossed around during summer storms.
Watering for Success
Watering is perhaps the most frequent task you will perform for your hanging basket. Because hanging containers are exposed to air on all sides, they dry out much faster than plants in the ground.
The "Finger Test"
Instead of watering on a strict schedule, use the "finger test." Stick your finger about an inch into the soil. If it feels dry, it is time to water. If it still feels damp, wait another day. Begonias like consistent moisture, but their tubers can rot if the soil stays saturated for too long.
How to Water Properly
When you water, do so thoroughly. Pour water onto the soil surface until you see it beginning to drain out of the bottom of the basket. This ensures that the entire root ball is hydrated. Try to water the soil directly rather than splashing the leaves and flowers, which helps keep the foliage looking its best.
Adjusting for Weather
On hot, breezy summer days, you may find that your hanging baskets need water every morning. In cooler or humid weather, they might go two or three days between waterings. Paying attention to these subtle changes in the environment will keep your begonias happy.
Feeding Your Begonias
Begonias are "heavy feeders," meaning they require a steady supply of nutrients to produce those massive, beautiful blooms all summer long. Since potting mix has a limited amount of nutrients, regular fertilizing is essential.
Choosing a Fertilizer
A balanced, water-soluble fertilizer is a great choice for begonias. For more planting, watering, and spacing advice, see How to Plant and Care for Begonias. You can also look for a "bloom booster" formula, which has a higher middle number (phosphorus) to encourage more flower production. At Longfield Gardens, we suggest using a liquid fertilizer every two weeks during the peak growing season.
Slow-Release Options
If you have a busy schedule, you can mix slow-release fertilizer granules into the potting soil at the time of planting. These granules gradually break down and provide a constant, low-level supply of food for several months. For the best results, you can still supplement with a liquid feed once a month to give the plants an extra boost.
Signs of Over-Fertilizing
While begonias love food, more isn't always better. If you see salt buildup (a white crust) on the soil surface or if the leaf tips look burnt, you may be using too much. Simply flush the basket with plain water a few times to wash away excess salts and reduce the frequency of your feedings.
Maintaining Your Basket Through the Season
One of the best things about tuberous begonias is that they are generally "self-cleaning," meaning they drop their old flowers on their own. However, a little bit of grooming goes a long way in keeping the basket looking fresh. For a fuller care overview, see our How to Care for a Begonia Plant for Beautiful Results guide.
Pinching and Pruning
If your begonia stems are getting longer than you like or look a bit thin, you can "pinch" the growing tips. Simply use your thumb and forefinger to snip off the very end of a stem. This encourages the plant to branch out, resulting in a fuller, bushier basket with even more flowers.
Air Circulation
As your plants grow larger and more dense, air circulation becomes more important. Ensure your baskets aren't crowded too closely together. Good airflow helps the soil dry out appropriately and keeps the foliage vibrant and healthy.
Mid-Season Refresh
By mid-August, your basket might look a little tired after months of blooming. This is a great time to check your watering and feeding routine. A fresh application of liquid fertilizer can often provide the "second wind" the plant needs to continue blooming beautifully until the first frost.
Key Takeaway: Consistent feeding and checking the soil moisture daily are the two most important habits for a spectacular begonia display that lasts from June through September.
Overwintering Begonia Tubers
In most US climates, begonias will not survive the winter outdoors. However, you don't have to buy new tubers every year. You can easily save your favorite varieties and replant them next spring. To check whether your area is warm enough for year-round planting, use the Hardiness Zone Map before making your plans.
Preparing for Dormancy
As the days get shorter and temperatures drop in autumn, the begonia will naturally start to slow down. When the foliage begins to yellow or after the first very light frost, it is time to bring the tubers in. Cut the stems back to about an inch above the tuber.
Curing the Tubers
Lift the tubers out of the soil and gently brush off any large clumps of dirt. Place them in a cool, dry, and shaded spot indoors for about a week to "cure." This allows the outer skin to toughen up and any remaining stem pieces to dry up and fall off naturally.
Winter Storage
Once cured, store the tubers in a breathable container. A cardboard box or a paper bag filled with slightly damp peat moss, vermiculite, or sawdust works perfectly. Keep the container in a cool, dark place where temperatures stay between 40°F and 50°F—a basement or a cool closet is usually ideal.
Checking In
Check your stored tubers once or twice during the winter. If they look shriveled, you can lightly mist the packing material with a tiny bit of water. If any tubers look soft or show signs of decay, remove them immediately to keep the rest of the group healthy. In the spring, you can start the whole cycle over again!
Creative Companion Plants
While a basket filled only with begonias is stunning, you can also mix them with other shade-loving plants for a more complex texture. This is often called the "Thriller, Filler, Spiller" method.
Foliage Companions
Coleus is a fantastic partner for begonias. Caladium Fancy Candidum also shares similar light and water requirements, adding an elegant, architectural look to a large hanging container.
Flowering Partners
If your basket gets a tiny bit of morning sun, you might consider pairing begonias with fuchsias or lobelia. Fuchsias provide a similar trailing habit with a different flower shape, while the tiny, intense blue flowers of lobelia offer a beautiful color contrast to the large, bold begonia blossoms.
Vine Accents
For even more "spill," try adding a few sprigs of Creeping Jenny (Lysimachia) or variegated Ivy. These vines will trail even further down than the begonias, creating a long, elegant curtain of greenery that frames the flowers perfectly.
Enjoying Your Display
A begonia hanging basket is more than just a garden project; it is a living piece of decor that brings joy every time you walk through your door. Whether you choose the fiery reds of a 'Cascade' variety or the soft, romantic yellows of a scented type, these plants are sure to impress.
Gardening is about the process as much as the result. Taking a few minutes each morning to check on your baskets with a cup of coffee in hand is a peaceful way to start the day. The satisfaction of seeing a tiny tuber grow into a massive, blooming display is one of the many reasons we love what we do.
At Longfield Gardens, our 100% Quality Guarantee helps make starting with premium tubers feel even easier.
Conclusion
Planting a begonia hanging basket is one of the easiest ways to bring high-impact color to the shaded parts of your yard. By starting your tubers indoors, choosing a high-quality potting mix, and maintaining a regular watering and feeding schedule, you can ensure a successful and beautiful display. Remember that gardening is an evolving experience, and each season offers a new chance to try different varieties and color combinations.
- Start tubers indoors 8-12 weeks before the last frost.
- Plant with the indented side facing up in well-draining soil.
- Place baskets in bright, indirect light away from harsh afternoon sun.
- Water when the top inch of soil feels dry and fertilize every two weeks.
Tuberous begonias are the ultimate solution for shade, offering a level of color and elegance that few other plants can match in a hanging container.
We invite you to explore the wide range of trailing begonias available at Longfield Gardens and start planning your most beautiful spring yet. For zone-based timing and other shipping details, see our Shipping Information page. If you have questions about your order or need more specific advice for your zone, our team is always ready to help. Happy planting!
FAQ
How many begonia tubers should I put in a 12-inch hanging basket?
For a standard 12-inch hanging basket, we recommend planting three tubers. This allows enough space for each plant's root system to develop while ensuring the basket looks full and lush once the foliage and flowers fill in. Spacing them in a triangle pattern near the edges of the basket will create the best trailing effect.
Do I need to deadhead my begonias to keep them blooming?
Most modern tuberous begonias are self-cleaning, meaning the old blooms will fall off on their own once they are finished. However, removing the spent flowers (deadheading) can help the basket look tidier and may encourage the plant to put more energy into new blooms. You can simply snap off the flower stems where they meet the main branch.
Why are my begonia leaves turning yellow?
Yellow leaves are usually a sign of either overwatering or a lack of nutrients. First, check the soil moisture; if it feels soggy, allow it to dry out more between waterings to ensure the tuber isn't sitting in water. If the moisture level is correct, your plant may need a boost of balanced liquid fertilizer to replenish the nutrients in the potting mix.
Can begonias grow in full sun?
Most tuberous begonias prefer partial shade or filtered light and can suffer from leaf scorch in intense, direct afternoon sun. While some newer wax begonia varieties are more sun-tolerant, trailing tuberous begonias do best when protected from the hottest part of the day. If you live in a very cool climate, they may tolerate more sun than they would in the hot South.