Buddleja davidii Black Knight 4.5 Litre Pot
Buddlejas are fast growing bushes that produce masses of sweetly scented flowers from mid summer right through to late autumn.They are a magnet for butterflies and bees, hence the common name butterfly bush.
They can be thugs, so they need plenty of room. Every year you should cut them back hard if you don't want them to take over the border. They grow anywhere and in any soil. You will get the best flowers in full sun.
Buddleja davidii Black Knight Bears long racemes of very fragrant very deep violet flowers, which are very attractive to butterflies.Height will reach 6-8 foot but is best cut back to keep compact.