Kale
Kale Growing Guides
- North Carolina State University - Growing Kale From Seed | North Carolina Cooperative Extension
- Cornell University - Explore Cornell - Home Gardening - Vegetable Growing Guides - Growing Guide
- University of Illinois - Kale (Brassica oleracea (Acephala group))-Hort Answers - University of Illinois Extension
- Penn State - Kale | Diseases and Pests, Description, Uses, Propagation
- University of Minnesota - Growing collards and kale in home gardens | UMN Extension