Begonia Amphioxus This lovely, rare, spotted indoor plant, which is also known as the spotted Begonia, will brighten up your home right away! Begonias are having a real resurgence at the moment, with unique varieties popping up more frequently in homes. They can be a tricky variety to look after but with some TLC they will thrive! How to care for your Begonia – Water: Only water your Begonia once the top soil feels dry, less so throughout Winter. Light: Begonia love bright indirect sunlight. Humidity: They love lots of humidity so would be very happy in a bathroom! Temperature: They love the warmth, about 20 degrees C. Toxic to cats & dogs? Yes Air purifying? Yes