The Squash Bees Were Already at Work
By Autumn Prairie Pumpkins
It was still dark when I walked out to the patch this morning, coffee in hand, the sky that soft inkwash color just before it decides to be blue. The pumpkins are not blooming yet, the vines not even started, but I was out there anyway, because last week I finally put down the compost and I wanted to see what the overnight rain had done to it.
That is when I thought about the squash bees.
By the time summer gets here and the first yellow cucurbita blossom unfolds, the squash bees will already be working in it. They wake before sunrise. They are in the flowers before the honeybees have even opened their eyes. Most gardeners never see them. And yet squash bees are one of the primary reasons you get pumpkins at all.
Squash bees: the pollinators that work the early shift
Squash bees, Peponapis pruinosa, are native to North America. Unlike honeybees, which someone brought over from Europe, squash bees have been tied to cucurbita cultivation for thousands of years. Their original range was Mexico and Central America, but they followed the northward spread of domesticated squash as Native American farmers carried those crops across the continent, long before European contact. They are specialists. Their larvae are fed exclusively cucurbit pollen, and the adults spend nearly all their foraging time on cucurbits. Squash, pumpkin, zucchini, gourds. That is their whole job, and they are extraordinarily good at it.
A female squash bee nests in the soil, usually right under the pumpkin patch, and she times her whole life cycle to the bloom. When the first squash flower opens, she is already there. It takes six to ten visits to fully pollinate a single squash blossom, and the squash bees get that done before most other bees are even awake.
That is a small, quiet miracle, and most people never know it is happening.
A small Earth Day thought
Earth Day falls this Wednesday. For a long time I thought of it as a thing that belonged to bigger hands than mine. Ocean cleanups, emissions policies, the kinds of news stories that make you feel small. But the longer I grow things, the more I think the whole Earth Day idea actually lives closer to home than that.
You do not need to save a rainforest. You need to leave a patch of soil undisturbed so a squash bee can nest under it.
That is it. That is the trick. Healthy pumpkin patches have healthy populations of native pollinators precisely because we do not till the ground to death every fall. We let the top few inches of soil rest. We leave some leaf litter. We do not spray the flowers in the morning. Those three habits, together, are better for Peponapis pruinosa than any donation to any cause.
And the beautiful part is, the bees pay us back in full. A well-pollinated squash patch can produce two or three times what an under-pollinated one will. Yield is not something a fertilizer bag gives you. It is something you coax out of your garden by inviting the right helpers.
Heirloom varieties and the pollinators that love them
A garden full of heirloom pumpkin seeds gives native pollinators more to work with than a supermarket monoculture ever will. Old varieties like Seminole, Waltham, and Dickinson have longer flowering windows, more varied bloom times, and richer nectar than most hybrids. They were selected, generation after generation, in gardens where native bees did the pollinating. That coevolution is still in their DNA.
When you plant an heirloom, you are not just choosing a flavor, you are choosing a relationship. The squash bee and the heirloom pumpkin have been in conversation for a very long time.
If you want to learn a little more about the varieties that thrive here, our Kansas pumpkin planting calendar walks through bloom windows by zone, and our guide to saving heirloom pumpkin seeds shows you how to keep the conversation going year after year.
What you can do before Wednesday
If your ground is warm enough to work, now is the time to get a patch ready. Do not strip it bare. Loosen the top few inches and leave some organic matter on top. Set aside a sunny corner with bare soil nearby, because that is where the female squash bees will nest. Plant heirlooms when the soil stays above sixty degrees.
Then leave it alone and let the summer come.
One more thought
I think the most honest form of Earth Day is the one that happens quietly, in your own yard, at five in the morning when no one is looking. A squash bee does not need a hashtag. She needs undisturbed soil, a sunny flower, and a gardener who knows enough to not get in her way.
That is a thing you can offer. That is a thing worth doing.
From the patch in Newton, Kansas.
From the patch to your garden