Better Homes and Gardens:Crocus Flowers
The early birds in the spring garden! Small, egg-shaped blooms create a blanket of color. Beautiful colors that range from blue and purple to bright yellow will make your garden stand out.
Crocus from Bulb.com
Planting and cultivation, varieties, and photograph.
Saffron
The history and culture of saffron, harvested from fall-flowereing crocus sativus.
The Crocus
Discussion of different varieties of crocuses and planting considerations, by Brian Baldwin.