Licorice plant (Helichrysum petiolare) is a trailing perennial shrub that grows to 18 to 24 inches in height. The licorice plant is drought tolerant and almost seems to thrive on neglect. Hardy to USDA zones 9b to 11, its silvery gray foliage makes an attractive accent in hanging flower baskets. Although the foliage has the scent of licorice, all parts of the plant are poisonous if ingested.
Make sure that your licorice plant is planted in a location where it will receive all-day sun. The licorice plant is not particular about the type or texture of soil in which it is grown as long as it drains well.
Water the licorice plant only if it appears to be stressed. This plant generally thrives with little or no water. If the weather is particularly hot and dry, give it a good soaking and then let it dry out.
Pinch off the flowers as they bloom as this will encourage the licorice plant to put out more of its attractive foliage.
Pick off caterpillars as you see them. They are especially attracted to the licorice plant.