Yes, begonias make good indoor plants, but the type you pick decides everything. The best begonias indoor plants are the ones bred for foliage, not the showy bulbs you buy for a summer patio. Choose right and you get a houseplant that stays handsome for years.
The difference is easy to see. A cane begonia on a bright windowsill keeps its glossy, spotted leaves and throws out the odd cluster of blooms season after season. A tuberous begonia indoors does the opposite. It yellows, drops leaves, and dies back by midwinter no matter what you do, because it is built to go dormant.
So the answer depends on which begonia sits in your pot. The best begonias indoor plants stay awake all year, which is exactly what cane and Rex types do, and they reward you for it. Tuberous types treat your living room as one short season and then check out. If you bought a begonia in full bloom from a garden center this spring, check the tag before you count on it as a permanent houseplant. A swollen bulb at the base is the giveaway that you have a tuberous one, and it will fade once the days get short.
Growing begonias indoors comes down to a few steady conditions. They want bright indirect light, room temperatures between 60 and 80°F (16 to 27°C), and a well-drained potting mix that never stays soggy. Keep them away from cold window drafts in winter and away from the hot, dry air that blows off a heating vent. Both extremes scorch the leaf edges fast.
Type really is the whole game for begonia houseplant care. Cane begonias are the toughest indoor pick, with tall jointed stems and angel-wing leaves that shrug off normal room conditions. Rex begonias are grown for their wild silver, purple, and green leaf patterns, and they make great indoor plants too, but they ask for more moisture in the air.
Rex types come from humid forest floors, so the dry winter rooms in your home leave their leaf tips brown and crisp. Set the pot on a pebble tray filled with water to lift the humidity right around the plant. Group a few foliage begonias together and they help hold moisture for each other. You can also move them to a brighter bathroom or kitchen where the air stays a little damper. Skip misting, since water sitting on begonia leaves invites mildew. Tuberous types stay off this list, since they go dormant and are not real year-round houseplants.
Placement makes or breaks your plant. An east-facing window is close to perfect, giving your begonia soft morning sun and bright indirect light the rest of the day. A north window works for Rex types that want less glare. Skip a south or west window with no curtain, because the hard afternoon sun bleaches and burns those thin leaves within days. If your only bright spot faces south, hang a sheer curtain to soften the light, or pull the pot a few feet back from the glass. A simple grow light works too when your home runs dark in winter.
Watering is where most people go wrong. Water only when the top inch of soil feels dry, then soak the pot until it runs from the drainage hole and tip out the saucer. Begonias rot fast in wet feet, so a pot with no drainage hole will kill yours quicker than any pest. Feed a diluted liquid fertilizer about once a month in spring and summer, then ease off in winter when growth slows. Pinch back leggy cane stems now and then to keep the plant bushy. Stick to the right type and these simple habits, and your begonia stays a strong indoor plant for years.
Read the full article: Begonias Plants: Full Care Guide
