Halloween lands on a Saturday this year, which means a lot of West Virginia kitchen tables are about to be covered in newspaper, carving tools and big orange piles of pumpkin goo. Before that slimy heap of seeds goes in the trash, hand your kids a question worth investigating: will the seeds from your jack-o'-lantern actually grow?
Pumpkins are already big news in the Mountain State this fall. Back on October 1–4, the 41st West Virginia Pumpkin Festival in Milton brought back its GIANT Pumpkin Contest. And WVU experts have long encouraged families not to waste their pumpkins after Halloween: WVU Extension's Joshua Peplowski suggests chopping old pumpkins into the compost pile, and saving the seeds for next year's planting.
We like that last idea so much we turned it into a one-week science lab. It's cheap, it's seasonal, and it sneaks in a real lesson about heredity that most kids never see coming.
What your kids will learn
Grades K–5
- What's inside a seed, and what it needs to wake up: water, warmth and air
- The plant life cycle, start to finish: seed, sprout, plant, flower, fruit (the pumpkin!), and back to seed
- How to observe, count and draw changes every day in a science notebook
- Sorting seeds by size, shape and color
Grades 6–12
- Designing a fair germination trial with one variable and a control group
- Calculating germination rate as a percentage and comparing groups
- Open pollination vs. hybrids: why seeds saved from a store-bought pumpkin may not grow into the same kind of pumpkin
- Seed saving and why genetic diversity matters in agriculture
This week's activity: The Jack-o'-Lantern Seed Test
You only need your pumpkin, paper towels, two zip-top bags, a marker and a warm spot in the house.
- Scoop the seeds. An adult handles the knife and cuts the lid; kids do the fun (gooey) part and scoop out the insides.
- Rinse and choose. Rinse the seeds in a colander and pick out 20 plump, full-looking ones. Let kids describe them: size, color, shape, texture.
- Make two groups. Put 10 seeds on a damp (not dripping) paper towel right away. Let the other 10 air-dry on a plate for two or three days, then set them up the same way. Fresh vs. dried is your one variable.
- Bag and label. Fold each paper towel over its seeds, slide it into a zip-top bag, and label it with the group name and date.
- Keep them cozy. Pumpkins love warmth, so pick a warm indoor spot away from drafty West Virginia windows. Both bags go in the same place.
- Check daily. Open the bags once a day for fresh air, count how many seeds have a root poking out, and add a little water if a towel feels dry. In a warm spot, many pumpkin seeds sprout within about a week.
- Do the math. After 10 days, divide sprouted seeds by 10 and multiply by 100 to get each group's germination rate. Older kids can write a hypothesis first and a short conclusion at the end.
The plot twist: many carving pumpkins are hybrids. That means their seeds might sprout just fine but could grow into a pumpkin that looks different from the parent. It's a perfect doorway into a conversation about heredity, and the reason gardeners prize heirloom seeds.
Make it a full-season seed lab
If your kids get hooked (they usually do), the Heirloom Vegetable Seed Science Collection turns one pumpkin experiment into a whole plant biology unit. Inside are 30 heirloom varieties and roughly 5,000 non-GMO, open-pollinated seeds, including Sugar Pie Pumpkins, Detroit Red Beets, Red Core Carrots, Roma Tomatoes and Blue Lake Bush Beans, plus germination supplies and printed instructions.
- Compare head to head: run your jack-o'-lantern seeds against heirloom Sugar Pie Pumpkin seeds, then extend the test to beans, beets and tomatoes.
- Curriculum included: five lessons for grades K–5 or six lessons for grades 6–12 (you choose at checkout), emailed to you after purchase.
- Worksheets included: a seed comparison and sorting sheet, a germination trial data chart, and a life cycle diagram (K–5) or lab report template (6–12).
- Seeds that come true: because heirlooms are open-pollinated, the seeds your kids save next fall can grow into the same variety, so the lesson keeps going year after year.
Cold months are perfect for indoor germination trials and planning, so the collection will be ready and waiting when spring planting time comes around.
Join the growing community
Every kit comes with an invitation to Aardvark's Seed Planting For Little Hands, our private group for families using our kits. After your order, request to join and we'll add you. Kids post sprout photos, compare germination rates, ask questions when an experiment surprises them, and cheer each other on.
Young growers from the hollows and ridges of West Virginia are learning right alongside families in Arkansas and Arizona. We'd love to see how your jack-o'-lantern seeds stack up against theirs.
Ready to grow?
Turn this Halloween's pumpkin into a plant science unit that lasts all winter:
Get the Heirloom Seed Science Collection
Happy Halloween and happy growing, West Virginia!
