How To Care For Bonfire Begonia. Soil should be light and well draining. Plant 40-50 cm 16-20 apart in well drained friable soil or potting mix.
This is the only place I know of online to purchase them. Dilute the fertilizer with water at a ratio of 3 parts water to 1 part fertilizer then pour the solution around the base of the plant. Water more often if necessary during the hot summer months.
Search for bonfire in their search box.
To reinvigorate your plants dig divide and re plant the tubers every three years. Propagation Propagate by seed at 21C 70F in spring. I hope this helps. Keep the soil moist but never wet or soggy.