Crack! I mean pavement cracks….what to plant?

[Iamtheoneinten]

That actually works. I have a very old patio and various paths, all brick edged or full brick, that are old and breaking a bit with every passing year and the frost. But as the garden is so big I won’t be able to do anyth8ng about this for quite some significant time. I really want to grow, low lying, hopefully walkable on, plants in the cracks.
I have tried various Thyme plants. Some are more successful than others, and only in certain places (it’s all south facing btw). And I let some wildflowers run rampant in the cracks - scarlet pimpernel, forget me not, sorrel (yellow and pink), and there are some escapees of violets, lobelia and campanula that pop up here and there. But I can’t see, to get the rest of the gaps going, and if I do, they seem to get overrun by grass escapees.
Is there any, failsafe, carpet plant I can try to introduce (other than those mentioned) that might compete better with grass and spread a bit more?

Pearlwort. Low growing, spreads like crazy, and has tiny white flowers. Ideal.

Yes to pearlwort. Also, if it hasn’t already colonised, Procumbent Pearlwort Sagina procumbens which has no petals and is often mistaken for a moss.

or Mind-your-own-business, Soleirolia soleirolii.

Erigeron karvinskianus?

Oh yes I do have Erigeron too, pops up here and there, but I was. Hoping for something more carpet like, the Erigeron is a bit ‘big’.
I was wary of Mind Your Own Business as I thought it might spread a bit too easily, where I might not want it?
Pearlwort looks interesting though, thank you!

Chamomile.