I bought a Clematis * Sunset* 6 weeks or so back and planted it in a
large terracotta pot . It wasn't in flower at the time and tho it is
growing well and looks healthy enough it has still not flowered.
The label states that it flowers from April thro Sept so would like
to know what is the problem ........
I have put the slow release feed sticks in the container.

Thanks for any help