Crotalaria magaliesbergensis is a floriferous little shrub that sprouts annually from a woody rootstock and makes a nice display early in the season.
The slender leaf clusters of Cyanotis speciosa arise annually from a woody rootstock. Interplant with grasses that can provide some support. It makes a lovely, colourful display.
Mentha aquatica or water mint has a creeping rootstock and grows around water and is easy to recognise by its almost spherical inflorescence. The small flowers vary in colour from white to mauve. Plant in a wet spot where it can be contained.
Dianthus mooiensis usually grows very close to tufted grass that supports the straggly habit. Plant in a well-drained soil.