Yes they are dry so ready. Take a white envelope and drop the seed pods in it. Give it a little shake the seeds will fall out. Pop onto white paper so you can remove the chaff then save the seeds in a new envelope 😄
Wait until the seeds are set and ripened, but try to catch them before they disperse. Check regularly, you soon get to recognise the right moment. Collect seeds when they are dry, so not a wet day (if that's possible at the moment).
The advice I read says don't underplant roses but this accidental combo seems to be OK for both
Sometimes it pays to ignore the advice and go with your gut. The colours look great together 💛💚💜