Those bloody Spanish bluebells are popping up all over the place, again. I does not seem to matter how well you thought you sifted the soil around the track bed and laid the permeable membrane there they are worming their way out and encroaching on the loading gauge limits. Heathers have been in full flower for some time, add a splash of colour. Max
Re your problems with the bluebells, I tend to find that dragging them out before they flower stops them in their tracks. Though there will always be a few to come through later which will need the same treatment. Which of these two are your problem Max?
The first two pics are an early one so I guess they may have been your issue. Every one of those flowers will be a tiny tiny bulb that is so difficult to get rid of. These are NOT blue bells though they may be described as such.
These are a true invasive Blue Bell from Europe. I do like them but would prefer the indiginous ones that are not quite in flower as yet. They are quite a large bulb and should be easily removed.
As for the rest of the Garden, these are in full flower just now. Celendine looked at as a weed but I like them. These are a Black Leafed variety though I have just introduced some green leafed ones that have taken root where I did not want them so they were moved and have settled in quite happily.