Can You Grow Begonias in the House?

Table of Contents

1. Introduction
2. Choosing the Best Begonias for Indoor Growing
3. The Right Light for Indoor Success
4. Watering Your Begonias Correctly
5. Humidity: The Secret Ingredient
6. Soil and Potting
7. Temperature and Environment
8. Feeding and Fertilizing
9. Routine Maintenance and Pruning
10. Moving Begonias Outdoors and Back In
11. Propagation: Growing New Plants for Free
12. A Note on Tuberous Begonias
13. Conclusion
14. FAQ

Introduction

Bringing the vibrant colors and lush textures of the garden inside is one of the most rewarding parts of being a plant lover. If you have ever admired the swirling silver patterns of a Rex begonia or the delicate hanging clusters of an Angel Wing, you might have wondered: can you grow begonias in the house? The answer is a resounding yes. These tropical beauties are naturally suited to life indoors because they evolved in the dappled light of forest floors, making them far more adaptable to home environments than many other flowering plants.

At Longfield Gardens, we enjoy helping home gardeners find success both in the soil and on the windowsill. Begonia Flower Bulbs for Sale offer a unique combination of spectacular foliage and charming flowers that can brighten any room. Whether you are a beginner looking for your first "fancy" plant or an experienced gardener wanting to overwinter your favorites, begonias are a fantastic choice.

This guide will walk you through everything you need to know to keep your indoor begonias healthy, from choosing the right variety to mastering the balance of light and water. For a broader overview of begonia types and care, All About Begonias is a helpful place to start. With a few simple steps, you can enjoy these elegant plants all year long.

Choosing the Best Begonias for Indoor Growing

While there are thousands of begonia species, they are generally grouped into a few main categories. Knowing which type you have is the first step toward success, as their needs can vary slightly.

Rex Begonias (Rhizomatous)

Rex begonias are the undisputed kings of indoor foliage. They are grown for their large, often asymmetrical leaves that feature incredible colors like metallic silver, deep burgundy, neon pink, and forest green. These plants grow from a rhizome, which is a thick, fleshy stem that creeps along the surface of the soil. Because they naturally stay relatively low and bushy, they are perfect for tabletops or plant stands.

Cane-Stemmed Begonias (Angel Wings)

Often called Angel Wing begonias due to their long, pointed leaves, these plants grow on upright, bamboo-like stems. They are prized for both their foliage—which often has beautiful silver "polka dots"—and their heavy clusters of pendulous flowers. Cane begonias are among the easiest types to grow in the house because they are quite sturdy and can handle slightly lower humidity than their Rex cousins.

Wax Begonias (Fibrous-Rooted)

You may recognize these as common bedding plants used in summer containers. However, wax begonias make surprisingly good houseplants. They have a neat, mounded habit and thick, succulent-like leaves in shades of green or bronze. If you provide them with enough light, they will bloom almost continuously indoors, offering cheerful splashes of white, pink, or red.

Rieger Begonias (Winter-Blooming)

If you are looking for a plant to brighten up the darkest months of the year, Rieger begonias are an excellent choice. They are specially bred to bloom during the winter. Their flowers look like miniature roses and come in a stunning array of warm tones. While often treated as temporary "gift plants," they can be kept for multiple seasons with the right care.

What to do next:

• Identify the type of begonia you have or want to buy.
• Check the stems: thick and creeping (Rex), bamboo-like (Cane), or mounded and fibrous (Wax).
• Choose a begonia collection for a wider range of forms and colors.

The Right Light for Indoor Success

Getting the light right is the most important factor for indoor begonias. In the wild, most begonias grow under the canopy of larger trees. This means they like bright light, but they do not like the hot, direct sun of high noon.

Finding the "Sweet Spot"

The best location for most indoor begonias is near an east-facing or west-facing window. An east window provides gentle morning sun, which is perfect for encouraging blooms without scorching the leaves. A west window also works well, provided the afternoon sun isn't too intense.

If you only have a south-facing window, which gets very bright, hot light, move your begonia a few feet back from the glass. You can also use a sheer curtain to filter the light. This creates the "dappled" effect that begonias love.

Signs Your Plant Needs More Light

If your begonia is not getting enough light, it will tell you. You might notice the stems becoming "leggy" or stretched out as the plant reaches toward the window. For flowering varieties, a lack of light usually means the plant will stop producing buds. For foliage varieties like Rex begonias, the colors may appear dull or fade to a plain green.

Using Artificial Lights

If your home doesn't have many windows, don't worry. Begonias respond very well to artificial grow lights or even standard fluorescent shop lights. Position the lights about 12 to 18 inches above the plants and keep them on for 12 to 14 hours a day to mimic a bright tropical environment.

Watering Your Begonias Correctly

Watering is where many new begonia owners feel a bit of pressure, but it is simpler than it seems. The goal is to keep the soil "evenly moist." This means the soil should feel like a wrung-out sponge—not dripping wet, but not bone-dry either.

The Finger Test

The most reliable way to know when to water is to use your finger. Stick it into the soil about an inch deep. If the top inch feels dry, it is time to give your plant a drink. If it still feels damp, wait a day or two and check again.

Avoid "Wet Feet"

Begonias have relatively fine, delicate roots that can drown if they sit in water for too long. This is often called root rot. To prevent this, always use a pot with drainage holes at the bottom. If your begonia is in a decorative pot without holes, keep it in a plastic "nursery liner" inside the decorative pot. When you water, take the liner to the sink, let it drain completely, and then put it back.

Water Quality and Technique

When you water, try to aim for the soil rather than the leaves. Getting the foliage wet can sometimes lead to fungal issues like powdery mildew. Using room-temperature water is also a kind gesture for these tropical plants, as ice-cold water from the tap can shock their roots.

Key Takeaway: Consistency is better than a schedule. Instead of watering every Monday, check the soil moisture every few days to see what the plant actually needs.

Humidity: The Secret Ingredient

Because begonias are native to tropical regions, they appreciate a bit of moisture in the air. Most modern homes, especially in the winter when the heat is on, have very dry air. Low humidity is the most common reason for those "crispy" brown edges on begonia leaves.

The Pebble Tray Method

The easiest way to boost humidity without a bulky machine is to create a pebble tray. Fill a shallow tray or saucer with small stones or pebbles. Add water until it is just below the top of the stones. Place your begonia pot on top of the pebbles. As the water evaporates, it creates a small "microclimate" of humid air right around the plant. Just make sure the bottom of the pot isn't actually sitting in the water, as this can lead to soggy roots.

Grouping Plants Together

Plants naturally release moisture through their leaves in a process called transpiration. By grouping several houseplants together, you can create a pocket of higher humidity that benefits all of them. This is an easy win for both the plants and your home decor.

A Note on Misting

Many people think misting leaves with a spray bottle helps, but for begonias, it is usually better to avoid it. Misting only raises humidity for a few minutes and can actually encourage leaf spots or mildew. Stick to pebble trays or a small room humidifier for better results.

Soil and Potting

Choosing the right home for your begonia's roots makes a big difference in how easily you can manage moisture.

The Right Soil Mix

Begonias need soil that can hold some moisture but also lets air reach the roots. A high-quality, peat-free multipurpose potting mix usually works well. If the mix looks very heavy or dense, you can improve the drainage by stirring in a handful of perlite or coarse sand. This ensures that water moves through the pot quickly and doesn't "puddle" around the roots.

Choosing the Right Pot

While it is tempting to put a small plant in a very large pot to give it "room to grow," begonias actually prefer to be a bit snug. A pot that is too large holds onto more water than the plant can use, which increases the risk of the soil staying too wet.

When it is time to move your plant to a bigger home—usually every year or two—choose a pot that is only one size larger (about an inch or two wider in diameter) than the current one. The begonia collection is a great reference when you are deciding which type may suit your space best.

Temperature and Environment

If you are comfortable in your home, your begonia likely is, too. They generally thrive in temperatures between 65°F and 75°F.

Avoid Drafts

Begonias can be sensitive to sudden changes in temperature. Try to keep them away from:

• Air conditioning vents
• Heating radiators
• Drafty windows or doors in the winter

In the winter, make sure the leaves are not touching cold window glass, as this can cause them to turn black or drop off. If the temperature in the room drops below 55°F at night, your begonia might stop growing and enter a resting phase.

Feeding and Fertilizing

Think of fertilizer as a vitamin boost rather than "food"—the plant makes its own food from the sun! During the spring and summer, when you see new leaves appearing, your begonia will appreciate some extra nutrients.

Use a Balanced Approach

A standard water-soluble houseplant fertilizer (often labeled as 10-10-10) works perfectly. To be safe, we recommend diluting the fertilizer to half the strength suggested on the package. Begonias have sensitive roots, and a "less is more" approach prevents fertilizer burn.

Seasonal Timing

Fertilize your begonias about once every two to four weeks during the active growing season. As the days get shorter in the fall and winter, the plant's growth will naturally slow down. This is your cue to stop fertilizing. Let the plant rest until you see new growth start again in the spring.

Routine Maintenance and Pruning

A little bit of grooming keeps your indoor begonias looking their best and prevents pests from finding a home.

Deadheading and Cleaning

"Deadheading" is just a gardening term for removing spent flowers. When a bloom starts to fade or turn brown, snip it off at the base of its little stem. This keeps the plant looking tidy and encourages it to put its energy into new growth. Similarly, if you see a leaf that has turned yellow or brown, go ahead and remove it.

Pruning for Shape

Cane begonias, in particular, can sometimes get a bit tall and "leggy." If your plant is looking thin, don't be afraid to prune it. Using clean, sharp scissors, snip the stem just above a leaf node (the little bump where a leaf meets the stem). This will signal the plant to grow two new stems from that spot, making it much bushier and fuller.

Pest Watch

While begonias are generally healthy, keep an eye out for common houseplant hitchhikers like aphids or mealybugs (which look like tiny bits of white cotton). If you see any, you can usually wipe them away with a cotton swab dipped in rubbing alcohol or use a gentle insecticidal soap.

What to do next:

• Check your plants once a week for spent flowers or dry leaves.
• Snip off leggy stems in early spring to encourage a bushy shape.
• Wipe the leaves occasionally with a damp cloth to remove dust so the plant can "breathe" better.

Moving Begonias Outdoors and Back In

Many indoor gardeners like to give their begonias a "summer vacation" outside. The fresh air and natural humidity can lead to a massive growth spurt.

The Transition Out

Wait until the nights are consistently above 60°F before moving your begonias outside. Start by putting them in a very shady spot for a few hours a day, gradually increasing their time outdoors. Never put an indoor begonia in direct, mid-day sun; the leaves will burn almost instantly.

Coming Back Inside

Before the first frost of autumn, it is time to bring them back in. This is the perfect time to inspect the plants for any outdoor pests. It is also helpful to give the pot a good rinse with a hose to wash away any ants or spiders that might be hiding in the drainage holes.

Be prepared for a little bit of leaf drop when you bring them inside. The plant is just adjusting to the lower light levels of your home. It will soon settle in and start growing new leaves adapted to the indoor light.

Propagation: Growing New Plants for Free

One of the most fun things about growing begonias in the house is how easy they are to propagate. You can create new plants to give to friends or to fill more corners of your home.

Leaf Cuttings (For Rex and Rhizomatous Types)

You can actually grow a whole new Rex begonia from just a piece of a leaf!

1. Cut a healthy, mature leaf from the plant.
2. Snip the leaf into small squares or wedges, ensuring each piece has a "vein" running through it.
3. Place these pieces on top of a tray of moist potting soil.
4. Keep the tray in a bright spot and cover it with a clear plastic bag to hold in humidity.
5. In a few weeks, tiny "baby" begonias will start to sprout from the edges of the leaf pieces.

Stem Cuttings (For Cane and Wax Types)

1. Cut a 4-to-6-inch piece of stem that has at least two or three leaves.
2. Remove the bottom leaves so you have a bare section of stem.
3. Place the stem in a glass of water or directly into a small pot of moist soil.
4. If using water, wait until you see roots about an inch long before moving it to soil.
5. If using soil, keep it moist and out of direct sun until the cutting feels "anchored" (which means roots have formed).

A Note on Tuberous Begonias

While we have focused on the types that grow well indoors year-round, you might also have tuberous begonias (like the Non-Stop or Illumination varieties) in your summer garden. These are a bit different.

Non-Stop Begonias require a period of dormancy during the winter. They are not ideal for staying "green" in the house all year. Instead, as the weather cools, you can bring the tubers inside, store them in a cool, dry place like a basement, and replant them in the spring. If you want a begonia that stays leafy and beautiful on your windowsill throughout the winter, stick with Rex or Cane varieties.

Conclusion

Growing begonias in the house is a rewarding way to bring professional-level garden beauty into your daily life. By matching the right variety to your home's light and keeping a close eye on moisture and humidity, you can enjoy these plants for many years. Remember that gardening is an adventure, and each plant has its own personality. Don't be discouraged by a yellow leaf here or there; simply adjust your care and watch how the plant responds.

At Longfield Gardens, we take pride in providing high-quality plants and the support you need to see them thrive. Our 100% Quality Guarantee backs every order, and our team is here to help you shop with confidence. We ship from our facility in Lakewood, New Jersey, ensuring your plants and bulbs arrive in prime condition for your home or garden. If you are planning your order, Shipping Information can help you match delivery timing to your zone.

Final Tips for Success:

• Light: Bright but indirect is the winning formula.
• Water: Wait for the top inch of soil to dry before watering again.
• Humidity: Use a pebble tray to keep the air moist and the leaves happy.
• Patience: Give your plant time to adjust when you first bring it home or change its location.

Ready to add more color to your indoor space? Start with one easy-to-care-for begonia collection and see just how simple and enjoyable indoor gardening can be.

FAQ

Are begonias toxic to cats and dogs?

Yes, begonias contain calcium oxalates which are mildly toxic to pets if eaten. The most toxic part is usually the underground portion (the rhizome or tuber), but it is still best to keep these plants on high shelves or in hanging baskets where curious pets cannot reach them. If you suspect your pet has eaten a begonia, contact your veterinarian for guidance.

Why are the edges of my begonia leaves turning brown and crispy?

The most common reason for brown, crispy edges is low humidity or dry air. This is especially frequent during the winter months. To help your plant, try using a pebble tray or a room humidifier. Is Begonia an Indoor Plant? Expert Care & Growing Guide also covers the basics of keeping begonias comfortable inside. It can also happen if the soil is allowed to dry out completely for too long, so try to keep the moisture levels consistent.

How often should I repot my indoor begonia?

Most begonias enjoy being a little bit "root-bound," meaning they like their roots to be snug in the pot. You generally only need to repot every one to two years. If you see roots growing out of the drainage holes or if the plant needs water much more frequently than it used to, it is likely time to move it to a pot that is one size larger.

Why is my begonia dropping its flowers or buds?

Bud drop is usually caused by a sudden change in the environment. This could be a dramatic shift in temperature (like a cold draft), moving the plant to a spot with significantly less light, or letting the soil get too dry. If your plant is dropping buds, check that it is in a stable, bright location and that the soil is staying evenly moist.