Low Growing, Compact Colourful Perennials Needed

Question

Triangular bed, 8’ of 2sides. On slope, sun all day . Clay soil. Normally fill with geraniums in summer but would like perennials now

Answer 1

Here are some ideas:

https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-7/zone-7-full-sun-plants.htm

https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-6/succulent-plants-for-zone-6.htm

https://www.gardeningknowhow.com/ornamental/foliage/ornamental-grass/dwarf-ornamental-grasses.htm