While the rest of the country is pulling up spent gardens, Arizona's low desert is just hitting its stride. The University of Arizona Cooperative Extension's November gardening guide for Pima County says early November is the time to sow beets, carrots, peas, onions, chard, spinach, kale, endive and turnips from seed. It also warns that the first frost sometimes shows up in mid-to-late November, so the best window is right now.
More Arizona families than ever are teaching at home, too. KOLD reported on October 19 that Arizona's Empowerment Scholarship Account program now funds 108,688 students, and that more local curriculum swaps are coming to Pinetop in November and Surprise in December.
If you're one of those families looking for science that gets kids outside now that the heat has broken, a cool-season seed race is about as good as it gets: real seeds, real soil, real data, and something tasty at the end.
What your kids will learn
Grades K–5
- Comparing seeds by size, shape and color (a beet "seed" is actually a cluster that can send up several sprouts!)
- The plant life cycle: seed, sprout, plant, flower, fruit, seed
- Sorting vegetables into groups: roots, leaves and fruits
- Observing and recording how different seeds germinate
Grades 6–12
- Designing a germination trial and comparing rates across varieties
- Classifying vegetables by botanical family
- Seed anatomy and dormancy, and why some seeds take weeks to emerge
- Open pollination, heredity, and the role of seed saving in genetic diversity
This week's activity: The Desert Veggie Sprout Race
Question: Which cool-season vegetable breaks through the soil first?
- Pick your plot. A sunny garden bed or a large pot of loose potting mix works. Desert soil can crust over, so mix in some compost or use potting mix for the top layer.
- Choose three racers. Beets, carrots and spinach are all on the Extension's November list. Any seeds you already have will work.
- Plant in labeled rows. Sow 10 seeds of each vegetable in its own row, at the depth printed on the packet. Use craft sticks to label each row with the name and date.
- Keep it fair. Water all rows the same amount, gently, so the surface stays moist. In dry Arizona air, that may mean a light watering every day until sprouts appear.
- Record daily. Count how many seedlings have popped up in each row. Younger kids can draw them; older kids can build a line graph of sprouts per day.
- Measure and compare. Once seedlings are up, measure them with a ruler each week. Carrots are famously slow, so don't give up on them!
- Watch the weather. If a frost is forecast, cover young plants overnight with frost cloth or an old sheet, as the Extension guide suggests.
Stock your whole season in one box
The Heirloom Vegetable Seed Science Collection is our most popular kit, and it's a perfect match for Arizona's cool season. It includes 30 heirloom varieties and roughly 5,000 non-GMO, open-pollinated seeds, including Detroit Red Beets, Red Core Carrots, Long Standing Spinach, Mixed Green Lettuce and Green Sprouting Broccoli, plus germination supplies and printed instructions.
- Curriculum included: five lessons for grades K–5 or six lessons for grades 6–12 (choose at checkout), emailed after purchase.
- Worksheets included: a seed comparison and sorting sheet, a germination trial data chart, and a plant life cycle diagram (K–5) or lab report template (6–12).
- Room to grow: with 30 varieties, you can run this race now, then repeat it with warm-season crops like Roma tomatoes and Bantam sweet corn when spring arrives.
- A lesson that keeps going: heirloom seeds are open-pollinated, so kids can save seeds and grow the same varieties next season.
Join the growing community
Every purchase includes 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. Share your sprout-race results, post photos of your first beet greens, and get help if a row is slow to come up.
Kids from Tucson to Phoenix are growing right alongside young gardeners in West Virginia and Arkansas, where the seasons look very different. Comparing notes across climates is half the fun.
Plant your desert seed lab
Get the Heirloom Seed Science Collection
Happy planting, Arizona!
