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Science at Home

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earth science

Egg Carton Nursery

Attract helpful bees to your garden by making an egg carton nursery and planting flower seeds that bees like. Then observe bees pollinating as they travel from flower to flower. 


  • Egg carton (preferably paper type, not Styrofoam)
  • Pencil
  • Potting soil
  • Plate or tray
  • Bowl
  • Spray bottle
  • Water
  • Seeds (bees especially like flowers including alyssum, geraniums, poppies, aster, lavender and black-eyed Susan)
  • Coffee grounds (optional)


  1. Use a pencil to carefully poke three small holes in the bottom of each individual egg cup.
  2. Fill each egg carton cup three-quarters full with potting soil. As an option, you can mix used coffee grounds with soil in a ratio of three-quarters soil to one-quarter coffee grounds.  
  3. Place a few seeds in each cup, then cover with a thin layer of soil.
  4. Place the egg carton on a waterproof plate or tray and set it in a warm, sunny spot inside your house.
  5. Spray a small amount of water on the carton every other day, keeping the soil moist but not soaked. If you see water coming out of the bottom of the egg cups, you've used too much!
  6. Keep seeds indoors for four to five weeks. Once the seeds sprout and have multiple sets of strong leaves, they can be taken outside.
  7. Egg cartons made of paper can be planted directly into the ground because they will biodegrade. Cartons made of Styrofoam will not break down; instead, remove the plants and soil and transplant them into the ground or larger pots. 

What's happening?

For the first few days, you probably didn't see much going on in your garden, but under the soil the seeds were germinating. That means it started using the energy stored as food inside the seed to make its first root and leaves.

After about a week, little green stems should poke up out of the soil. Once the first leaves appear, they capture sunlight to create food, allowing the plant to grow. This is called photosynthesis.


Some people are allergic to bee stings, so if you are planting bee-friendly flowers in your garden choose an area that's good for bees as well as people.


The process by which an organism like a plant grows from a seed

The process used by plants to take energy from sunlight and convert it to chemical energy that is then used to fuel its growth 

Recommended reading

Give Bees a Chance by Bethany Barton

From Seed to Plant by Gail Gibbons

These education materials were prepared by the Museum of Science and Industry under award NA16SEC0080001 from the Environmental Literacy Grant (ELG) Program of the National Oceanic and Atmospheric Administration (NOAA), U.S. Department of Commerce. The statements, findings, conclusions, and recommendations are those of the author(s) and do not necessarily reflect the views of NOAA or the U.S. Department of Commerce.