Let the plant die and dry out most of the seeds stay attached to the plant. I cut or break the stems off in small pieces and put them in a 5 gallon plastic bucket. Stir them around and some of the seeds fall off. Crumble the plant up with your hand and rub it between your hands the seeds are round balls they roll right off into the bucket. Pull out the stems out and throw then away the seeds are in the bottom of the bucket.speedster7926 wrote:how do you collect seeds from flowering herbs I tried getting some from my sage it flowered big purple flowers but I didn't find any seeds
This works good for other plants for collecting seeds.