This section is from the book "The Wild Garden", by W. Robinson. Also available from Amazon: William Robinson: The Wild Gardener.
A very dis-tinct, prostrate, hairy, half-shrubby plant, with a profusion of flowers of as fine a blue as any gentian. Thrives vigorously in any deep sandy soil, and in such well deserves naturalisation among low rock plants, etc., in sunny positions. Probably other species of the genus will be found suitable for the same purpose.
 
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