Phlox subulata White Admiral.
Pterocephalus perennis (very pale pink Scabious flowers)
Aubrieta alba

Many thanks Owd, I will Google the one I can’t pronounce 🙂.

I have a low-retaining wall and I find that Thymes cascade and soften the edges.

Cascading sounds good- thanks Jimmy.

Thanks Julia, but I really want trailers … probably didn’t make that clear …

Snow-in-summer? Just looked at some pics, Sheila. Or Alyssum, I have the latter on the rockery.

Snow in Summer is a heck of a thug though.

Thanks Kate, Alyssum is a good idea. I’m thinking of putting in a couple of Erigeron while I do a bit more research 🙂.

Sounds a good plan. I actually saw some erigeron when I was googling the others 👍

Just found Gypsophila Rosenschleier while browsing Gardens Illustrated Sept 2020(!) before recycling … looks a perfect cascading plant.
Thanks everyone for your ideas 🙂.

I wrote to Garden Answers with this question but also wondering if there was something that looked like cherry blossom. They suggested putting Deutzia ‘Cherry Blossom’ nearby, and said my query will be published in the January 2024 edition of the magazine!