This section is from the book "Commercial Gardening Vol4", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
The species most largely grown is the North American Holly-leaved Barberry, B. Aquifolium (formerly known as Mahonia). It is a graceful plant with pinnate spiny-toothed leaves, and produces masses of yellow flowers in March and April, and later on deep-purple fruits like miniature plums, excellent for jam. Thousands are grown for sale annually and are propagated by seeds, division, and cuttings. The plants are excellent for game coverts, and the foliage, either natural or dyed, is largely used by florists for decorative work.
Fig. 415. - Berberis aristata. (1/2).