Any tall flowers for dry soil..?

[Fucksandflowers]

My front garden is nearly finished but I have a thriving patch of cerise queen yarrow and keep thinking how much nicer it might look to squeeze a taller flowering plant in with it there for next year...

The yarrow is planted in full sun but right next to a cherry tree (branches are heavily thinned so it doesn't produce much shade at all) which obviously makes the soil quite dry...

My first thoughts were hollyhocks or Delphinium but apparently dry soil is a no no with these plants?

Eryngium - some can reach a reasonably height
Scabious
Euphorbia
Echinops
Verbena bonariensis (though this seems to be hard to come by atm)
Cosmos
Opium poppies

Yes, have you seen the Eryngium in one of the papers, mail possibly, growing in a Devon garden at 14 feet tall?!?!
😱
Bit too tall for me.

Scabious and Verbena I have already elsewhere in the garden.

I will look into the other suggestions thank you, always liked cosmos....

Look at rose campion too, we have a very dry bed and it thrives there

Lychnis would look pretty there’s cerise and white flowered varieties and have silvery leaves. The white would go with the yarrow and they don’t need staking.

I actually bought two pots of lychnis this afternoon!
Pink ones to go in my back garden.
They had them in Poundland

Much as I hate staking I may need plants that require it as they'll need to be pretty tall.

The yarrow must be 60cm tall at least, I'd like the additional plants to be taller

Maybe foxgloves....

Hollyhocks?

Though actually they might need rich soil now I think of it

Sunflowers can grow pretty much anywhere