When do I get to learn about gardening? Jan Jenson July 16, 2013 I LOVE this – learning about growing things should start about 3… and continue through high school… that way children CAN learn to become self sufficient, rather than dependent upon society for all their needs. I LOVE this - learning about growing things should start about 3... and continue through high school... that way children CAN learn to become self sufficientrather than dependent upon society for all their needs.When do I get to learn about gardening?