Activity
How to Grow Potatoes in a Bag
Even if you don’t have a big outside yard area, your child can grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat! This simple food science project will help satisfy your kid's curiosity about how pants grow...and satisfy his hunger once the potatoes grow!
What You Need:
- Large (30 gallon) black plastic garbage bag
- Disease-free seed potatoes (from garden stores) or grocery store potatoes
- Knife
- Scissors
- Compost and soil
- Shovel
What You Do:
- Place two potatoes in a warm spot and give them a week or so for sprouts (“eyes”) to form. Let the sprouts get to be about ¼ to ½ inch in length.
- If the potatoes are larger than a chicken’s egg, help your child cut them into chunks about 2 inches wide. Each chunk should still have at least two sprouts. If the potatoes have been cut, let them sit a few more days before planting.
- Roll down the sides of your large garbage bag (make sure it’s black to keep the heat in) to be about half its original height. Use scissors to help your child make some holes in the bottom of the bag for drainage. Put the bag outside in a sunny area that won’t gather frost.
- Your child can shovel in 2 parts soil to 1 part compost to fill the bag up to about 12 inches.
- Next, your child can plant the potatoes or potato chunks. He should put them in the soil with the sprouts pointed up. He should shovel in another 5 inches of soil/compost mixture to bury the potatoes. Then he can water them.
- Within three weeks, your child should see shoots coming up inside the bag! Keep the soil damp but not soaking. When the shoots are about 6 inches tall, roll up the edges of the bag a bit and add more soil/compost mix so that just the leaf tops show through dirt. Continue this process every few weeks until the shoots reach the top of the bag and start to flower, about 70-90 days from planting. Water the potatoes less often in the last week of time.
- To harvest, help your child cut open the side of the bag. Ta-da! Potatoes for dinner!
- Wondering what to do with all your newfound potatoes? Try making our mashed potato casserole, playing around with potato people, or making a good old-fashioned potato battery!
Related learning resources
How to Make a Trick-or-Treat Bag
Activity
How to Make a Trick-or-Treat Bag
Learn how to make a trick-or-treat bag for Halloween. See how to make a decorative trick-or-treat bag with this Halloween craft tutorial.
Preschool
Activity
How Plants Grow
Worksheet
How Plants Grow
Wondering how to explain photosynthesis to a kindergartener? Here is a worksheet that explains how plants grow through a simple picture.
Kindergarten
Science
Worksheet
How to Grow Mold
Activity
How to Grow Mold
This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.
Activity
How Does Mold Grow?
Activity
How Does Mold Grow?
How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.
Activity
How to Grow an Avocado Plant
Activity
How to Grow an Avocado Plant
Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.
1st Grade
Science
Activity
How Pumpkins Grow
Lesson plan
How Pumpkins Grow
In this lesson, students will explore the life cycle of a pumpkin plant. Then they will have the chance to grow their own!
Preschool
Lesson plan
How Plants Grow
Lesson plan
How Plants Grow
In this lesson, students will learn about what plants need to survive. They will then have a chance to grow their own plant!
Preschool
Science
Lesson plan
How Does a Flower Grow?
Worksheet
How Does a Flower Grow?
Challenge your child with a basic life science question, and she'll circle the objects that she thinks helps flowers grow.
1st Grade
Science
Worksheet
What's in the Bag?
Worksheet
What's in the Bag?
Your 1st grader decides what's in the grocery bag, just this once. Let him try this "Finish the Drawing" worksheet. A grocery bag and imagination ... yummy!
1st Grade
Worksheet
How Does it Grow?: Potato
Worksheet
How Does it Grow?: Potato
Your child has probably tried a potato, but does he know the process it goes through to make it to the table? Find out with this life science worksheet.
2nd Grade
Science
Worksheet
Fox Face Bag
Activity
Fox Face Bag
Whether it's a bag lunch, goody bag, or used to decorate a table, this cute little fox bag is sure to make your kid smile.
1st Grade
Math
Activity
What's in a Doctor's Bag?
Activity
What's in a Doctor's Bag?
This Labor Day, encourage your child to learn more about the different tools and supplies found in a doctor's bag by having her create one of her own!
3rd Grade
Social studies
Activity