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[1]F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956
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Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
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[138]Bird. R. (Editor) Growing from Seed. Volume 3.
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Very readable magazine with lots of information on propagation.
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[188]Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers
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Excellent range of photographs, some cultivation details but very little information on plant uses.
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[197]Royal Horticultural Society. Ground Cover Plants.
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A handy little booklet from the R.H.S.
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[200]Huxley. A. The New RHS Dictionary of Gardening. 1992.
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Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
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[208]Thomas. G. S. Plants for Ground Cover
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An excellent detailled book on the subject, very comprehensive.
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[221]Crook. H. Clifford. Campanulas - their cultivation and classification.
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The most comprehensive treatment of the genus yet written (2002).
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[233]Thomas. G. S. Perennial Garden Plants
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A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
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[271]Lewis. P. & Lynch. M. Campanulas - A Gardener's Guide.
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Very readable account of almost 150 members of the genus, together with their hybrids and cultivars, that are more commonly grown in gardens. Excellent photographs of many of the species.
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