From Moonlighter Ruby Sugar:

 In March and April, I worked with a Girl Scout troop on MacDill AFB. They learned about plants, made a self-watering container from a recycled water bottle, and decoupaged flower pots, planting seeds in each to earn a gardening badge. The first were Daisies (age K-1st grade). The brownies made these containers. This is the second group I've done this with. 

(Click on the images to enlarge and scroll through them.)

Shown in the photos are Brownies (grades 2-3), and Juniors (grades 4-5).  The troop leader is a friend of mine from church.  In both sessions, I gave the girls a brief lesson on how to plant from seed or seedling. We discussed what plants need to grow (with a handout) and then proceeded to work on the self watering container or the decoupagepots.  The Daisies planted wheat grass seed in their containers. The Brownies and Juniors took home a baggie with soil and wildflower seeds to plant once the pot had dried.