Let the children glue on green construction paper leaves and green pipe cleaners for the stems of their flowers. For the flowers use small or large muffin paper cups. This will give a 3-D effect and allow the classroom garden to come alive. You can add bugs, insects and animals to your garden if your class really gets into it. For preschool age you should cut paper bag in half horizontally and make flower patterns ahead of time.
Flowers can be as simple as cutting circles out of colored construction paper.
Cut medium sized green strips for the stem. Have child open bag. The top portion of the bag should be cut into small strips before hand as well. Place strips in bottom of bag. Then have child glue flower pieces together and glue to each side of the bag.