We have been growing this plant successfully in this garden for the past three years. L. triplinervis is one of the few gnidias that grows easily from cuttings. In KwaZulu-Natal National Botanical Garden in Pietermaritzburg, we have been experimenting with different methods of growing these little shrubs. Finally we achieved a good growing percentage of 75 - 85 percent by taking fresh, disease-free cuttings, without using root hormone. The cuttings are inserted in small blocks of oasis and placed in a well-drained tray. Oasis has the ability to hold water well. Sometimes we use the standard method of growing plants from cuttings by placing them in coarse to medium pine bark, again without using rooting hormone.

The cuttings are placed in a mist house with a bottom heat of ± 25ºC. The plants root within seven weeks. Once rooted they are potted with coarse pine bark which is mixed with a slow release fertilizer, and kept in a section of the mist house without bottom heating for a further one and a half weeks (about ten days), then taken out and placed under shade netting for up to six weeks before being placed in full sun or planted out in a garden.

We have not yet grown this plant from seed, because seeds of Lasiosiphon triplinervis are difficult to collect and propagation by cuttings is very successful.