Tradescantia is flowering well this year. At least I think it is, but I don't have quantitative data to verify my impression. Normally I'm aware of occasional flowers, but this year I've noticed a lot of flowers. It'll be interesting to look for fruit later. It's not easy to verify such impressions without counting and measuring, and that requires keeping a notebook year after year.
Tradescantia is a serious weed because it's rapidly spread through fragments of stem that can root easily. Almost any attempt to control it manually is destined to just spread it further (at least that's my excuse for letting it run rampant in my garden). And of course avoiding tip fees by dumping garden rubbish in gullies and on roadsides just spreads weeds further.