Plectranthus hereroensis is a hardy, attractive, fast growing, evergreen but short-lived shrub. It's broad, bright green leaves contrast beautifully with darker foliage planted behind it.
It is a particularly floriferous shrub, and if pruned regularly will bush out with many flowering stems. The deep bluish-purple flowers are borne in long tapered spikes from about April through to the end of May.
It is a host plant to a number of butterfly species, and an attractive food plant to bees and other insects.
This shrub will flower and grow best in full sun, which is unusual for most Plectranthus species. Plant in well-drained soil, and add plenty of compost for healthy plants.
If left unpruned, it can grow to 2m.
A most worthwhile addition to any garden, as it's lovely blue flowers contrast beautifully with other colourful plants flowering at this time of the year.
Some examples are Leonotis leonurus and some Aloe species, as well as Syncholostemon densiflorus and Euryops pectinatus. Although very drought hardy, it is suitable for gardens where frost is not too severe.
Plectranthus hereroensis is being investigated further for compounds found in its roots that have shown anti-bacterial activity.
Occurs in hilly terrain in sandy, dry savannah.
Size: up to 2m, but generally about 1m