For a few weeks my small potted hydrangeas have taken a turn for the
worst. Their leaves have started browning; some turning 'crisp', and
some turning 'soggy' - so I'm not clear whether I'm overwatering or
underwatering. I water them a little every day, the pots drain well, and
they're in a part of the garden that gets about 2 hours of sun a day (on
a good day), so they're not being scorched.
This morning I took a closer look, and noticed that inside new buds and
growing leaves, there are green and white flies, and that some of the
stems also seem to have black spots on them.
Are these bugs likely to be why the plants are looking so miserable? And
which sort of insecticide should I be using? Should I be watering more
or less? And should I move them to a completely shady part of the
Any advice gratefully received