I am an enthusiastic amateur, filling lots of pots and some borders with
easy plants each year. Last year I planted Dianthus for the first time. I
love the flowers and was looking forward to them coming back each year. Of
the 6 plants I put in the front garden, none have come back this year, not a
trace.

What did I do wrong? The soil is quite sandy and poor, but I dig left over
compost in regularly and this has helped other bedding.

Any ideas?

Kate