How to grow Tall Plectranthus

In the garden Plectranthus ecklonii is an attractive and popular garden subject. Mass planting of the blue, white and pink cultivars are very striking. P. ecklonii is best grown in partial shade. It is recommended for gardens where frost is not too severe. In colder climates it can be grown as a container house plant indoors. P. ecklonii is a fast growing pioneer shrub and very suited for shady gardens. It will flower profusely the first season after planting. Plant about 60 cm apart. Prune back hard after flowering during midwinter.

Seeds can be planted in a shallow standard seed tray in standard soil. Cover with a thin layer of sand (1-2 mm) and keep moist. Keep in a shady but well lit environment. Germination is rapid and the seedlings can be planted out in individual bags as soon as they are large enough to handle.

P. ecklonii is easily propagated from cuttings or seed.
Cuttings can be planted like perennial grass ‘in situ’. Cuttings should be about 15-20 cm long, with the top leaves kept. Keep moist and rooting is rapid. Cuttings can also be rooted in sand or other appropriate cutting medium. The best time to take cuttings is spring or summer. Keep them in a shady, but well lit terrain.

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Tall plectranthus is a half hardy plant.

These estimates for how long Tall plectranthus takes to sprout, grow and harvest are from real observations from real gardeners, right around the world.

Plectranthus pink, Groot spoorsalie

¹ http://www.plantzafrica.com/frames/plantsfram.htm