New border

Gardenlass

I am re-planting an old border which runs along a stone wall & is south facing. I wanted to have some core plants which I could then plant around & was thinking of upright grasses & phormiums which would provide some year round colour/interest. I could then fill in with perennials. There is an existing large old agapanthus which I don’t really want to disturb & I would like to include some Russian sage. The border is approx 12 metres long but is not very wide, about 75 cm with a slight curve.

I am feeling a bit overwhelmed at where to start! Does this sound like a feasible plan?

I am in north Wales so we so get plenty of rain but the border does drain well & get a lot of sun when we have it.

Loxley

I wouldn't go with Phormiums, because they get quite big (and are pretty unattractive IMHO!) but upright grasses (e.g. Calamagrostis Karl Foerster or Overdam) would look great with perennials like Russian Sage. Verbena bonariensis is another obvious plant to use, it will lean from the wall a bit but I don't think that matters too much. If you can widen the border so much the better.

Gardenlass

Thanks for your suggestions, I find it very difficult when I can’t visit the garden centre to check things out. It’s not the same online!