Recommended Flower Resources
There is a confusing amount of information available on the web. Here are some of the books and websites I find useful for information on growing cut flowers (in no particular order). Some of these are Northern Hemisphere so add 6 months, and be aware of different growing climates. There are also many great podcasts to listen to whilst gardening or driving.
Websites:
Books:
The Cut Flower Handbook - by Lisa Mason Ziegler
A Year in Flowers - by Erin Benzakein (Floret Farm)
Discovering Dahlias - by Erin Benzakein (Floret Farm)
Field Guide to Specialty Cut Flowers - by Dr Allan M. Armitage