Melianthus major, the giant honey flower or kruidjie-roer-my-nie (Afrikaans for ´herb-touch-me-not´), is a species of flowering plant in the family Francoaceae. It is an evergreen suckering shrub, endemic to South Africa and naturalised in India, Australia and New Zealand. It grows to tall by wide, with pinnate blue-green leaves long, which have a distinctive musky odour. Dark red, nectar-laden flower spikes, in length, appear in spring, followed by green pods. All parts of the plants are poisonous.

The Latin binomial Melianthus major literally means "large honey flower". The plant is also sometimes called honeybush (along with many other plants).

In cultivation this plant requires a sheltered location and may also need a protective winter mulch in temperate regions. It has gained the Royal Horticultural Society´s Award of Garden Merit.