Create a garden for children
There are few things that match the joy of watching children take charge of little projects, and gardening projects are no exception. Set aside a little patch of dirt for your kids to plant seeds and watch things grow. Make sure it is reasonably fertile and in full sun, you don't want to make a starter project so challenging that it generates disillusionment rather than the pride of accomplishment. Stick to annuals. Turn the dirt at a spade's depth early in the spring, to ensure that most of the seeds will germinate.