I have a jasmine covered in flower buds I think it is the summer flowering variety (Jasminum officianale) it has v small scented white flowers.
Can someone explain why it always flowers in March each year??

Also, this year for the first time, it has just been severely damaged by frost and looks awful (else it is dying from some other disease, leaves have become brown and crisped, inner leaves seem undamaged?) Should I cut it back straight away? Any advice please.......