Ilex verticillata, winterberry holly, which is a native deciduous holly. Looks like a female, so if there's a boy nearby, it will form berries that are lovely throughout the fall.

I love my 'heirloom' mock orange (I don't know the name b/c it was here when we bought the house 20 years ago). No scent (I'm in a Boston suburb), but otherwise a glorious shrub. Mine is 12' high x 8' wide. Was planted decades ago, and has never failed me in 20 years - even when I had to cut alot off it mid-summer due to poison ivy wrapped around it bloomed the next spring (June for me) and always has alot of healthy green stems (canes?). Provides privacy screen from neighbors' driveway and the street.

It's an oddity for the rose family in that it has opposite leaves and the flowers have four petals. Invasive in some areas. https://www.invasiveplantatlas.org/subject.html?sub=6891

@floral_uk z.8/9 SW UK if only I had the space to grow a new one elsewhere. I don't really have any full sun spaces and definitely not one for this shrub. I am trying to find a place to squeeze in a rose bush. Good to know that they can be started easy. My friend loves it and wants one. I will try to get her a cutting to start. @ken_adrian Adrian MI cold Z5 I do like the snowball, but now that I know what it is, I see others that definitely have bigger snowballs. But that said, I don't think mine will do that as it does not get enough sun as you previously said. It pretty much just gets morning sun as it's on east side of house. I will try to trim it up a bit once it is done blooming. I love it but it is a little unruly at present. Thanks for the pruning videos. I'm a newbie gardener and pruning still makes me nervous.