Buddleja davidii

i got one in the same sort of location and it seems to e doing fine just left where it is, after reading on here about watering shrubs ive only watered it once a week now its settled,to help its roots get stronger or something of the sort,hope that helps in any way

Buddlaeias don't really need alot of attention, but if you can get hold of some brick dust and gently fork it in around the roots, it will enjoy that. You can trim back any straggly bits for the sake of appearance, but the main prune is done in February, early March at the latest. Then cut it hard back to about 1 ft above the ground. This will encourage that year's new shoots. Buddlaeias flower on new wood, so if you prune it this year you will lose your flowers. All you need to do this year is remember the three D's. Dead, Dying and Diseased. That's all you need to remove, and this little rule applies to most flowering shrubs.

Prune instructions are as BBbee says above. I'll just add, though, that Buddleia flowers much better in sun than in shade, and oddly, the butterflies are drawn to it IF the flowers are in sun, but not so much if they're in shade. It's a tough old plant, doesn't need much food, grows on railway sidings if it gets a chance, all by itself.

Il just leave it to do whats its doing then, my phobia is butterflies (more so moths) bought this for my hubby as it said attracted wildlife, wasnt until after I was looking up more details did I find the name "butterfly bush" that I started to sweat!!

will put the 3"Ds" on my pinboard as a reminder

very helpful all of you thanks

x x x