Posted: 25/09/2017 at 07:32
I tried for years to grow VB in my garden at home and despite everyone saying it self seeded, it never did for me so I know where you're coming from. However, now I grow it at my allotment and it has flourished. Because it's quite windy I have to cut most of it but not all of the plants back a bit around this time of year otherwise they're just a mess.
At the allotment, it self seeds freely into the gravel and I pot these up and give them to friends or transfer them to the home garden in springtime. Try to keep yours as dry as you can, I think the winter wet helps to kill mine. Perhaps try leaving some of the seed heads on if you can, even support them so they don't break or fall over and see if you get some little seedlings. Good luck Susan 722.