When I took a tour around Highgrove a couple of years ago I was looking forward to seeing the vast swathes of tulips. They were gone, having sat too uncomfortably in their sustainable surroundings. The tulips were replaced with fritillaria, but the ground had been so well-prepared previously that the 'frits' failed. Too much drainage.
Nancy Lancaster planted some in a badly drained part of her garden when she lived in Northamptonshire in the 1920s and 'they eventually seeded themselves.' She didn't plant that many. So, take a handful of bulbs and give them perfect conditions, then try to forget about them. Each new chequerboard bloom will be a very pleasant surprise.