On Thu, 28 Jul 2016 13:07:40 +0100, David Hill
wrote:

snip
There is a variety of box that has yellow tips
see http://www.buxus-sempervirens.co.uk/...ves/4567844307

Erm, that seems to suggest the tips are yellow because of the plant
suffering some form of stress or did you mean to include a different
link?

snip


Sorry,

No problems David, as long as I'm not going mad(er). ;-)

Was on my way out and just went for the picture which is typical of
Buxus sempervirens Gold Tip also known as B. sempervirens "Notata"

It *could* be that these leaves have had this colouring all along but
I don't think so. I watered them over a couple of weeks a while back
and my mate commented on how healthy the looked on his return.

This time round I have tried to react to the much hotter weather by
watering them more frequently and with more water (on the basis that
any surplus will drain out in any case?) so really don't know what's
happened (what is the cause etc).

It could well be that they do this at this time of year ... or in
particularly hot weather ... but I'm concerned it is a result of some
'stress'. ;-(

So, if when I go there next and test the soil with my fingers ... if
it still feels damp an inch or so below the surface I'll not water it
any further?

Cheers, T i m