Growing Guides for “Kale”

North Carolina State University - Growing Kale From Seed | North Carolina Cooperative Extension

University of Minnesota - Growing collards and kale in home gardens | UMN Extension

Michigan State University - How to Grow Kale and Collards - MSU Extension

Penn State - Kale | Diseases and Pests, Description, Uses, Propagation

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