Grow spring/green onions in only 10 days! Great gardening project for kids. Best of all they can be grown on your kitchen bench without soil. Snip & use as needed. Replant the roots in your garden for even longer harvesting. For more tips see themicrogardener..... | The Micro Gardener
Forcing tulips in water is a fun, easy, and a unique way to present tulips that most people have not seen before. I think showing the natural beauty of the bulb is a pure, modern, and minimalist approach to floral design. Give it a try.
Grow an Avocado Tree from the pit (for a houseplant, it probably won't produce fruit). After drying, the pit is suspended in a glass of water and once there is root growth of about 2″, it can be planted in a pot of soil and tended to as a houseplant. If your climate allows, you can plant this outdoors.