Is there any way to attract bumblbees in one's landplot?

My grandfather had these hedge like bushes with giant red flowers lining the front windows that always had bumblebees. Im not great with identifying flowers; looked like Hibiscus maybe, but in a somewhat dense bush or hedge structure. Anyway, the bumblebees loved that. Didn't notice them anywhere else on the property, and the first time I saw them (4-5yo) I was quite terrified and would have remembered. They were huge and fury with bold colors and not afraid me, but not so scary after I learned about paper wasp from playing around in the wood-shed.

It really depends on where you live. I've found this site useful:

https://xerces.org/pollinator-conservation/pollinator-friend...

Make a few beds and allow them to be "wild" based on your region. All sorts of pollenating insects will show up, eventually.

They're after low-lying flowering plants, on my property. Basically weeds in the grass.