Nonstops are tuberous begonias that typically flower from late spring into summer, but, if given light in the evening over the winter months, they will bloom nonstop. Bred in Germany, nonstop begonias are more heat-tolerant and have longer-lasting flowers than other tuberous begonias. Because of their compact size (10 inches in height) the nonstop begonia is versatile enough to be grown not only in the garden bed but in pots and hanging baskets as well. Grow the nonstop begonia in bright shade.
Allow the top 2 inches of soil to dry prior to watering the nonstop begonia and then water until the soil is saturated.
Cut back any foliage or remove any plants from within a 12-inch radius of the nonstop begonia. Begonias require air circulation to ward off fungal disease.
Fertilize the nonstop begonia once a month with a 10-10-10 formula at the rate listed on the label. Water the begonia after fertilizing.
Dig up the nonstop begonia tuber in the fall after the plant has died back.
Brush the dirt from the tuber and place it in a sunny location for 3 days or until it is dry.
Place the tuber in a container to which you have added slightly moist sand.
Remove the tubers from winter storage one month prior to your last frost.
Plant the tubers in pots filled with equal parts of moist peat moss and vermiculite or perlite. Place the pots in an area that is dark and remains 70 degrees F.
Cover the sprouts with a layer of peat moss and move the pots into a bright area of the home, such as a windowsill. The nonstop begonias can be planted into the garden or moved outside in their pots when all danger of frost has passed.
Deadhead the nonstop begonia frequently during the blooming period by pinching off faded flowers.