This section is from the book "The Gardener's Monthly And Horticulturist V26", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
A good blue-flowered, hardy shrub is very desirable. The Garden has a wood-cut of this plant, with the following account: "It is a native of China and has been recently introduced to this country by Messrs. Veitch, who thus describe it in their catalogue: 'A sub-evergreen free-growing shrub, with Verbena-like foliage. It produces dense clusters of light blue flowers from the axils of the leaves of the young shoots. It flowers profusely for several weeks, and the young growths have a Sage-like fragrance.' Another species, C. incana, is a similar plant and equally pretty".