To rejuvenate older plants and stimulate overall new growth, prune plants back to within 3 or 4 inches of the ground. Do this only when warm weather is expected, in early spring if you have cool winters or in late winter if you live where winters are mild and usually frost-free.

How do you prune Alternanthera?

Webmaster - Sydney: Hi Kathleen You can rejuvenate your Alternanthera by cutting it back to within about 10 cm from the soil. Now ( early spring) is a good time to do this. It will encourage lots of new bushy growth..

Does Alternanthera come back every year?

These frost-tender perennials are grown as annuals and range in size from 2-inch dwarfs to 12-inch mounds of foliage. The amount of pinching you put into your Alternanthera plant care routine determines the growth habit of the plant. ... You can make a neat edging for your borders or walkways using Alternanthera.