perenials for a dry, sunny bank

[LookingForwardToSummer]

Any ideas? I've got a s/w facing slope of varied steepness, it used to be under a mmassive wellingtonia which has recntly been felled. I'm always pleased to have a new planting space but this is a bit of a challenge - we have a sandy soil and it must be pretty acid still from all the pine needles. The added challenge is that I don't want to buy any plants - seeds, cuttings and spares only! I want big blocks of the same plant in white, pink or purple (vaguely 'prairie' style). Already have lots of little geraniums and japanese anenomes + some bits of aster.

Lavender? Roses?

Vinca minor - should find some somewhere near and take cuttings.

Creeping Jenny (preferably the golden leaved variety) ditto

Geraniums should cope.

Lavender would do well as would thyme (provided that its not too acid)

Iris (bearded) ?

Verbascums are nice prarie style and come from seeds.

Poppies might help to fill gaps to start with

Thrift, pinks. Sweet Williams. (all seeds again)

Trying to rack my brain for all the things that don't grow in my waterlogged clay based garden!

Does it have to be perennials? I think the prairie style is more of an annuals sort of thing.

Irises would work well I think. Also osteospermum if you live somewhere mild.

some good ideas, thank you. i could use annuals if they are self seeding. i'm sort thinking of a kind of survival of the fittest approach - invasive plants a bonus.

ib, you are right i don't really mean 'prairie' just that its a wide area not a border so it needs to be 'clumpy' rather that sloping front to back. also i don't really like grasses!

If you get the right osteospermum it doesn't need to be that mild - have had one for several years now and reasonably far north, not near the coast....

Catmint is brilliant in long swathes. It is a gorgeous purple.

For invasive annuals it's hard to beat love in a mist. Very pretty but usually blue. There's a pink variant but I don't have it so I don't know what it's like.

Various sages have done well for me in that situation - grow well from cuttings too. Also rosemary and lavender if you'll extend to shrubs.