Nearly all my plants are self seeded in a gravel bed,a few others around the garden. It's amazing where they pop up. I then transplant them around the garden when the stems have toughened up. I think this helps with the slug situation.
I love VB but my husband can't stand them, he says they are long stalks with a flower on the end. I keep telling him they are elegant, graceful plants so useful for giving height to the border and the bees and insects love them, but he just can't see the point. I still plant them what ever he says.
we have to agree to differ.
Have a nice day folks.