Buddleja davidii alba shock colour change

 For several years I have been growing a Buddleja davidii alba shrub in my
garden which each year has produced plenty of white scented blooms, all
white and only white.

To my great surprise this month I observed that some branches are carrying
white blooms while other adjacent joining branches are carrying light mauve
blooms.

What has happened to this shrub ?
Is it possible to get it back to carrying all white blooms in future years
simply by pruning off this year's branches which are carrying the mauve
blooms ?

Anthony  ( 30 km east of London )

 Anthony Stokes wrote:

They sound like "sports" which is how many named form of B.davidii
originated.

Cut them off with a sharp knife flush with the stem they come from

pk

 
"p.k."  wrote in message news

Thanks for that advice p.k.

 On Mon, 25 Jun 2007 23:02:08 +0100, "Anthony Stokes"


I'd have a close look around the base of the shrub to make sure that
the shoots with the mauve flowers are actually coming from the main
shrub. B. Davidii readily self seeds and suckers and you can end up
with reversions to the basic Davidii which does carry mauve flowers in
its natural state.

 "Jupiter"  wrote in message >>

Yes , they are.  The branches some carrying white and some carrying mauve
flowers are high in the air and all growing from the same 'trunks' of the
same buddleja.
It's an interesting and pretty affect that I had not seen before on Buddleja
davidii.

Anthony