There's a lot of open gardens around this time of year, I'm going to another one on Sunday this week actually, a little. Closer to home this time. It's a good way for people to show off their efforts to other like-minded people and a good place to get some ideas and speak with people doing the same as I do; gardening.
The purple ones are grape hyacinths yes, quite a nice little flower really, and in open fields like this, visually impactful. As you point out, there's a lot of man made clutter in life these days and I prefer to avoid it when possible, the country boy in me I guess, and this place was a very nice spot to spend some time.
Hopefully you manage to wrong a little more value from Summer and as the cooler months come along you find something outside to do regardless.
All the best with those 83 tabs.