Begonia "Flamingo Queen"

As with most Begonias, the Flamingo Queen need bright, indirect light. This means the indoor varieties prefer a spot near a large window with a sheer curtain to protect them from any direct sunlight. Direct sun can burn their leaves.  The fact that begonias like shade outdoors makes them ideal for growing inside.

The best way to know when to water your Begonia is to check the soil with your finger every few days. Begonias like evenly moist soil, but they prefer to dry out just a bit between waterings. Stick your finger in the soil up to the first knuckle—if it’s dry, water it. When watering your Begonia, opt for distilled water or rainwater, if possible, as the plant can be sensitive to the dissolved salts in tap water. This sensitivity can cause some browning of the leaves, which is typically not fatal to the plant, but can detract from your Begonia’s appearance.
 

One of the exact, healthy rooted plants as shown, growing in a 3" nursery pot.