In reply to dread-i:
> I've planted loads of snowdrops, crocus, and daffs over the years. Also bluebells and wild garlic. None of them seem to grow, or one out of 50 will pop up. Barstewards, the lot of them. I expect they do it deliberately, just to annoy me.
I've also tried sowing bluebells from seed gathered from wild bluebells after flowering - result: zilch. During the first lockdown I was chomping on wild garlic leaves collected from the river banks near to home. I collected some bulbs that had washed out and they're now out of control! When they come up and flower I think they spread seeds which get between the cracks of paving stones. I'm constantly uprooting them.