Once planted it will take a few years to produce flowers in significant numbers and a scent heavy enough to notice. Be careful where you plant it. Once established it can get out of hand quickly.

self sown ones in my garden take about 3-4 years . how old is yours or did you buy it ready to go in the ground?

This is a self sown one, probably 2 years old. When to put in ground?

Looks like it's ready to go and is looking to grab hold of something to start its climbing. You can plant now if you wish. I trained mine to grow on top and along an old picket fence and it looks nice and smells great when in flower.

Got one from Wilkinsons, a bit smaller than yours, two years ago. Is becoming established but nowhere near flowering. How lovely to have your self-sown one.

I will put it in the ground and have seedlings all over the garden! Will pot some up for a plant fair.