Historically, rosemary was one of the cordial herbs used to flavor ale and wine. It was also used in Christmas decoration.
“Down with the rosemary and so,
Down with the baies and mistletoe,
Down with the holly, ivie all
Wherewith ye deck the Christmas Hall.”—HERRICK.
Rosemary Christmas Trees
Although an herb, rosemary is often shaped into lovely miniature Christmas trees. The plant is well suited for this purpose as its essential oils produce a scent similar to pine trees and it has a natural evergreen shape and needle-like leaves.
If you purchase a rosemary plant whether as a Christmas tree or for your indoor herb garden, remember it needs good light and moderate watering. Allow the soil to dry before re-watering to avoid root rot. The most common cause of death for potted rosemary is over watering. In spring transfer your rosemary to a clay pot. The clay will help wick excess water out of the soil. Fertilize monthly to maintain health. To this advice I add that you can also kill them by allowing the plant to dry out, so don’t do that either.
Because rosemary is native to the hot, dry hills of the Mediterranean, growing it indoors can be a problem. You may find you get more dense vigorous growth if it is kept outside during most of the year. Trim the plant periodically to preserve the Christmas tree shape.~