Natural dyes for Easter egg coloring and family gardening ideas...
I found this.
Gardening with Children - Eartheasy.com Solutions for Sustainable Living
This site has loads of great suggestions (right hand column) and a free download pdf file that is good on growing beans!
Grow a bean plant - Great Grub Club
The Imagination Tree: Growing Cress Heads and Cress Initials!
Sunflowers houses and more...
Harvesting and Eating Sunflower Seeds | Natural Learning Initiative
Free Plant coloring sheets:
Plant colouring sheets (SB2332) - SparkleBox