Buddleja Buzz Velvet (buddleia, Butterfly Bush) Is A Compact & Floriferous Variety Revealing Lots Of Fragrant Rich Flowers On Stems That Reach Around 1.2m (4ft). This Is Excellent News For Those That Enjoy Container Gardening And/or Have A Limited Amount Of Space. They Are Fantastic In Pots On Balconies Too, Even If You Have No Garden.the Mid-to-late Summer Blooms Attract A Wealth Of Butterflies; Beautiful Beneficial Pollinators That Increase The Bio-diversity & Wildlife Activity In Your Garden.this Is An Easy-prune Perennial Plant; All You Need Do Is Prune Stems Each March To About 5cm (2in) From The Base Of The Plant. Young Stems Shoot Up To Just Over A Metre (3ft) High Flowering From Mid-summer On These First-year Stems. Keeping The Stems Intact Over Winter Provides Structural Interest & Perches For Garden Birds.when You Prune Buzz Velvet In Early-spring Add A Layer Of Mulch Or Bulky Compost Around The Base Of The Plant To Provide It With Plentiful Nutrients Before It Puts Up Its Fresh Flush Of Stems.