Growing a garden in a cup is a simple science activity that lets kids watch plants sprout and grow right in front of them. With clear plastic cups, soil, and seeds, children can see roots, stems, and leaves develop over time. This easy project is perfect for curious kids who love hands-on learning.
Age Range: 4–12 years
Difficulty: Easy
What Does It Mean to Grow a Garden in a Cup?
When you grow a garden in a cup, you plant seeds in a clear cup so kids can observe every stage of growth. They can see how the seed sprouts, how roots spread through the soil, and how the stem reaches toward the light. Because the cup is transparent, it turns into a mini science lab on the windowsill.
Materials Needed
- Clear plastic cups
- Soil
- Seeds (beans, sunflowers, or other fast-growing seeds)
- Water
- Measuring tools (ruler or tape measure)
Instructions
- Prepare the cup. Fill a clear plastic cup about three-quarters full with soil. Gently tap the cup to settle the soil.
- Plant the seed. Make a small hole in the soil with your finger and place a seed inside. Next, cover it lightly with soil.
- Water and place in sunlight. Add a small amount of water so the soil is moist but not soggy. Then place the cup in a sunny spot, such as a windowsill.
- Observe and record growth. Check the cup each day to look for changes. Once the plant starts to grow, measure its height weekly and write down the results. In addition, kids can draw pictures of how the plant looks over time.
Educational Angle
This “grow a garden in a cup” activity teaches more than just how to plant a seed. It also helps kids learn:
- Plant growth: Children see how seeds sprout, develop roots, and grow leaves.
- Responsibility: Kids practice caring for a living thing by watering it regularly and checking its progress.
- Environmental awareness: They learn that plants need sunlight, water, and soil, and they begin to understand how important plants are to our world.
Because this project is easy to set up and fun to watch, it’s a great way to introduce kids to gardening, science, and caring for the environment—all in one clear little cup.