A good way to keep your rosemary plants going in colder zones, instead of replacing them annually, is to take stem cuttings during the growing season and propagate new plants for the following year.

Fill a clean glass or jar with room-temperature filtered water (chlorinated tap water can slow rooting). Submerge the bottom ...

Learn how to prune rosemary plants young and old to keep the herbaceous shrub productive and looking its best.

Rosemary herb is an evergreen shrub with blue flowers. It is a plant of aroma used to add flavour to poultry, lamb and meat dishes and vegetables especially potatoes. It is also great in tea.