 Propagation is by seed or cuttings.Seeds do not require any treatment, and take 14 to 49 days to germinate.In the absence of further information specific to "B. epica", George recommends that cultivated plants be treated as for "B. media" and "B. praemorsa", both of which require a sunny position in well-drained soil, and tolerate only light pruning not below the green foliage.