Q.Clematis
Planted clematis last year and had a few flowers. Flower card stated it was a tall height clematis a “gran altura. Did not prune it for unsure of what I should do. Spring this year brought beautiful purple flowers and since then no flowers. Very heavy rains for a week, could that possibly be responsible?
Poorly draining soil can effect the health of the vines roots.
These links will help you.
https://www.gardeningknowhow.com/ornamental/vines/clematis/growing-clematis.htm
https://www.gardeningknowhow.com/ornamental/vines/clematis/getting-clematis-to-flower.htm