l have selected a variety of books which I believe are among the best for the hobbyist to follow as a guide to growing healthy plants in containers or in the garden. There are hundreds of books available online at: www.abebooks.com
The books range in price from a few dollars to as much as $13,000.
Hardy Geraniums: cultivation and care with photographic library
by Robin Parer
1001 Pelargoniums: all varieties cultivation and care
by Hazel Key
Scented Geraniums: (Scented Pelargoniums)
by Jim Becker and Faye Brawner
Geraniums: All varieties of Pelargoniums cultivation and care
by Faye Brawner
Pelargoniums: Species and cultivars cultivation and care
by Diana Miller
Geraniacea: The natural order of Gerania. Illustrated by colored figures and descriptions; comprising the numerous and beautiful mule-varieties cultivated in the gardens of Great Britain, with directions for their treatment, 5 volumes, complete.
by Robert Sweet