What would you plant here?

[frostedviolets]

Hot and sunny brick wall and loose gravelly soil.

Already has lavender, dianthus, aster and roses there but I want a plant to dot in amongst all these that is preferably ant repellent as ants make a nest here every year and it gets on my nerves being swarmed by the little bastards every time I step foot there.
Suggestions?

And something to grow against the house wall too?
No self clingers!
Was thinking maybe clematis Montana but unsure if it would like the heat?

Honeysuckle doesn’t sucker onto buildings. Herbs work against ants: mint, oregano, rosemary, sage, melissa (tolerates and survives my extremely dry and unwatered flower bed), artemesia. Or St johns wort, evening primrose, or alpine rockery plants. Or lilac. Lilacs will manage anything.

I love honeysuckle, I already have three though!
The winter one, serotina and belgica so I’d like something different this time.

I’ve not heard of melissa, is that another name for lemon balm or an entirely different plant?
I’ll look into herbs more closely, thank you.

Achillea
Perovskia

Both are good doers on poor soil and like it sunny

Yes, lemon balm. Link for other readers en.m.wikipedia.org/wiki/Lemon_balm - has formed little bushels and is incredibly tough, surviving on the south facing side where the phlox has long struggled. The ground cover of alpine strawberries has also survived. Strawberries are tough little plants

I'd grow some espaliered fruit trees against a sunny wall.

I have loads of fan trained trees too!
Pears, plums, cherries, apples..

Could I do a vine?
Like an Issai kiwi or a passion fruit?

Abutilon vitifolium, preferably Tennant's White unless you prefer the mauve colour of the original.