"Martin Sykes" wrote in message ...
"Colin Brook" wrote in message
...
Hello again,
The bougainvillaea has been thriving; growing about 8 feet high over the
door from house to conservatory. About two or three weeks ago the tips
of the newly emerging leaves blackened (in some cases extending to the
whole leaf) and there is now no further leaf growth. All leaves are
affected.

I didn't post anything last time because I'm really just guessing but the
damage does sound like frost damage. Is the affected plant in slightly
different circumstances to the other three where it might have got a couple
of degrees colder? Maybe someone opened the window for ventilation or maybe
there is a natural draught which might have got it. Alternatively, maybe
overwatering and a slightly warmer position have started it into growth at a

I'm tempted to agree with that. Temperature can vary a lot in a structure like that. You will have many different
micro-climates in there which can cause you trouble or which you can exploit to the advantage of your plants. Do some
measuring and recording, watch your plants and make your conservatory even more useful.

Rod