Convolvulus

mark.negin

A border of convolvulus on chalky soil by the sea has suddenly started to wither and look very unhappy.
Any suggestions as to cause and, if possible, remedy?

debs64

You may wish to edit your post to remove your email address? 

Brexiteer

Why you posted email address 

Bijdezee

Lack of moisture? Being by the sea usually means some drying salty winds.