Good angel wing begonia winter care means you water less, stop feeding, and keep temps steady. Winter is not the time to push growth. Your plant needs a quiet rest to store energy for the burst of leaves and flowers that comes in spring. Adjust your routine and your angel wing will come through the cold months just fine.
During begonia dormancy, your plant's growth slows way down as the days get shorter. It absorbs less water through its roots and can't use nutrients like it does in summer. Pushing fertilizer or heavy watering during this phase leads to root rot. Think of it like your plant is sleeping. You wouldn't force-feed someone taking a nap. Your begonia needs the same quiet treatment.
My first winter with an angel wing taught me this the hard way. I kept watering on my summer schedule and the lower leaves turned yellow by December. The soil stayed wet for days because the plant wasn't drinking as fast. Once I backed off to watering only when the top 1 to 2 inches (2.5 to 5 centimeters) felt dry, the leaf drop stopped in two weeks. That single change saved my plant from root rot.
Your overwintering begonia indoors setup needs the right spot. Move your plant away from cold drafts near windows and doors. Even a few inches between the pot and a cold windowpane makes a big difference. Keep your room above 60°F (15.5°C) at all times. Cold air below that point stresses your plant and triggers leaf drop. I keep mine near an interior wall about two feet from a south-facing window.
Stop all fertilizer from November through March. Your plant can't use extra nutrients during dormancy. Unused salts build up in the soil and burn roots over time. You'll see this damage as brown leaf tips in spring. If your home gets dark in winter, set up a small grow light on a timer for 10 to 12 hours per day. This helps your plant hold its leaves without forcing new growth.
The two biggest winter mistakes are keeping your summer watering pace and placing pots near cold surfaces. Both lead to the same result: stressed roots sitting in cold wet soil. Cut your watering by roughly half compared to summer. Check the soil every 7 to 10 days instead of weekly. Only water when the top inch feels dry to your finger. This patience makes the difference between a plant that bounces back strong in spring and one that fights rot for months.
One more tip that has worked well for me: hold off on any pruning until late February or early March. Winter cuts heal slower and leave open wounds exposed to fungal infections longer than spring cuts do. Mark your calendar for the last week of February to do a cleanup trim. By then the days are getting longer, the plant is waking up, and fresh growth will fill in those pruning cuts fast.
Read the full article: Angel Wing Begonia Care and Growing Guide