I planted squash seeds in March —Tatume, Costata Romanesco, Waltham Butternut and Seminole — and now, more than six months later, I’m still harvesting squash.
If you look at the photo above, which I took a little over a week ago, and imagine that I was harvesting that much every week and sometimes twice a week for about four months, you’ll get a pretty good idea of how much squash I’m talking about. A LOT OF SQUASH.
Given the fact that the Smith Elementary School garden (where all this squash was grown), has a healthy population of squash vine borers, how is this even possible?
I don’t know, but I’m not complaining. Too much squash has never been a problem in my world. Which brings me to something I don’t understand: Why are there so many jokes about funny things home gardeners do to get rid of surplus zucchini?
Not once in my many years of home gardening have I considered sneaking onto a neighbor’s porch to deposit a bag of squash. And I’ve definitely never considered leaving a pile of squash in the back seat of an unlocked parked car. And have you heard the one about placing an overgrown zucchini in your toilet tank to save water?
Maybe joking or not joking about zucchini depends on the presence, or absence, of the infamous squash vine borer. If you’re gardening in a part of the country that has large populations of borers (pretty much every state east of Interstate 35), you don’t worry about runaway squash plants. In fact, depending on the varieties you’re growing, you may not get any squash.
If you’re in the western half of the country, where, apparently, squash vine borer moths (Melittia cucurbitae) are not lying in wait for your squash seeds to sprout, you could be overwhelmed by nonstop squash production all summer long. OK, so I can see how that might be a little bit funny, but if you’ve got too much squash, why not just donate it to a food pantry?
Perhaps I’m not the right audience for zucchini jokes. I certainly didn’t have any trouble finding good homes for all the extra cucurbits coming out of the Smith garden. Over the summer, custodians and other staff working at the school were happy to take home a few squash. And friends who came to the Smith garden to help pull weeds never said no to a bag of squash offered as a thank-you for their help.
And then there are my garden students. This week, I resumed teaching after-school classes in the garden at Smith (only a handful of students with everyone wearing a mask), so now I’ll be able to send squash home with each one of my students, some of whom helped collect and save the seeds last year for the open-pollinated squash we’re growing this year.
The commonly accepted borer remedies — slicing open the stems to remove the larva, spraying the leaves and stems weekly with BT, picking off the tiny brown eggs, and growing the plants under row cover— seemed like too much to deal with in school garden classes, so at Smith, we have focused our growing efforts on SVB resistant Tatumes, Seminoles and Butternuts, which can all withstand some borer damage and keep on producing. We’ve also had pretty good luck with Costata Romanesco, a sturdy, thick-stemmed heirloom zucchini.
(To my taste buds, these varieties are every bit as good as the more common straight neck yellow squash and dark green zucchini, which seem to have no defenses against the borer.)
At planting time, we always sow extra seeds because I assume the SVB’s will take out at least half the plants. We also give the plants plenty of space so the vines can roam and put down new roots, which helps them out-run the borer damage. When the summer heat comes on, I top dress the plants with plenty of compost and make sure they get regular water.
Apparently, these steps can sometimes pay off with a big squash harvest. And in my garden book, that is not a laughing matter. ❦
Longtime Austin gardener and writer Renee Studebaker is a retired newspaper journalist who now teaches children how to grow and cook vegetables. (Renee also took the photo.)