Jim W wrote in message

If its flowers are spherical and orange or yellow then its a B. globosa
cultivar . 'Orange Ball' and 'Lemon Ball' (what a surprise) They should
be pruned after flowering in summer. NOT first thing in spring.
If orange with pink and purple and halfway between 'normal' spires and
speherical then its x weyeranii.

If its plain spires and anything between white to deep mauve (eg
white/pink/red blueish etc) then its likly to be a B. davidii

Mine flowers until the frosts, it's still in flower now, and plenty more
to come. I prune it hard in Spring, never done it any harm.

Mike
www.british-naturism.org.uk