Posted: 10/09/2015 at 16:08
Think the question is really will carolime's white hydrangea change its basic colour as red can do on acid soil and blue on alkaline.
Basically...in my experience...white hudrangeas, if given right conditions of min dappled shade, good moisture retentive and healthy soil, should remain white. Whether they remain pristine white is another matter. agree with Marion that if we are talking summer flowers they should remain white .....if the variety is a true named white
I planted 2 white hydrangeas for someone few years back and they are wonderful, esp one in a very shaded cool corner.
Of course,,whatever is in the soil, added to it etc. can spoil any bush
Caroline, I am pretty sure your white hydrangea will remain white.....let us know next summer. (I like to be proved right )