Hermannia salviifolia can be planted for its bushy habit and bright, lime-green leaves and yellow flowers, used in mixed beds and borders, or as a groundcover, or as container plants. It is well suited to fynbos gardens. It requires a well-drained medium and full sun.

These plants can be propagated by seed or cuttings. Seed-grown plants appear to make stronger plants and are quicker to establish themselves, when planted out, than those produced by cuttings. Seed is best sown in late summer to autumn, or in spring. The seedlings should emerge within 10 days and can be pricked out when large enough to handle. Softwood or herbaceous cuttings should be taken from a vigorous, actively growing mother plant in spring to early summer, treated with a rooting hormone, and placed in a propagation unit with bottom heat of up to 28°C and intermittent mist. Rooting should occur within 4 weeks, with a 40% success rate.

Prune the plants in the winter by cutting away the old growth. Since these plants respond excellently to grazing, pruning simulates grazing and stimulates new growth and prolific flowering.