Growing butternut squash is fun but sometimes it is hard to know when to harvest them. Too soon and they will shrivel and mold. Too late and the frost can kill them.
There are 3 factors to know so you can get your butternut squash harvested at the right time so it will hold up thru the fall. Lets go over the 3 factors to deciding when to harvest your butternut squash.
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So, growing butternut squash is fun, but sometimes it’s really hard to know when to harvest them. You know, too soon and they’ll shrivel and mold, and too late, the frost can kill them. So, there’s three factors to know when you can get your butternut squash harvested at the right time so that it’s going to hold up through the fall and into the winter. So, let’s go over the three factors to deciding when to harvest your butternut squash. All right, number one is the first factor is variety. you know, what type of butternut squash did you plant? Is it a late season variety or a short season variety? Now, late season squash can take up to 120 days to mature, and a short season variety can take up to 90 days to mature. So, you want to kind of keep track of the days um that the squash has been growing in the garden and which type that you planted. All right, number two is the maturity factor. So, there’s an easy test to do to see if the skin on the butternut squash has become hard and mature. So, you want to take your thumb and you want to just push it in to the flesh. And then you want to see if it leaves a mark. Now, this one barely barely leaving a mark. And this one, it’s pretty hard. I can hear that it’s hard. So, if it passes the um thumbnail test, then it’s ripe and it doesn’t need to stay any longer. Now, this one down here, it looks about the same, but I can take that and I can push my thumbnail way in it. And you can see that it’s uh oozing right now. So, this one is not mature. And this one needs to stay hooked on the vine uh longer until I can test it with my thumbnail to see if it’s uh if the shell is hard or not. All right. So, this one here is mature. I can take this into the house and it’ll finish hardening uh the shell on it for me in a warm, dry place. This one here I need to leave on the vine. Now, uh the third factor to consider is frost. So, the big question is when the frost is going to kill the vine. So, sometimes we get a frost before the butternut squash is ready to harvest. And I’m going to start watching the 10day forecast in early September. And if it’s predicted to go below 32 degrees Fahrenheit, and my butternut squash have not passed the fingernail test, I’ll go ahead and cover the vines with a frost blanket to get them through the night. Now, I use two 1.5 ouncez frost blankets over the vines and the squash. Be sure to remember to hold down the blankets with a few rocks cuz usually the wind will blow before it gets really cold. And I cover the frost blankets with a layer of plastic just to keep them dry. Now, by covering the vines, this gives my butternut squash vines more time to ripen the squash before I harvest them. And I’ll watch the butternut squash closely and get them harvested before a hard frost of below 25° F. Now, if it gets that cold, it’s going to damage the butternut squash, even if they are mature. So, you want to go ahead and get your butternut squash out if it’s going to be below 25°. Now, there’s a link in the description below if you are interested in getting some of the same frost blankets that I like to use. So once harvested, I will cure the butternut squash by storing them in a warm, dry place for a week and then they’re ready to roast and eat. And I will store them in a dry place for up to 4 months. And if I want to store them longer, I will go ahead and roast them off and then freeze the flesh in a freezer container. [Music]

4 Comments

  1. New squash grower here, I may have harvested mine too early because the weather has been wet and cold for weeks already, and the slugs were beginning to chew on them. I put them in a sunny windowsill and it looks like they are ripening. I don't plan on keeping 20 butternuts for myself, will they still be edible? Can they be diced, blanched and kept in the freezer?

  2. Just on time! They are ready in my zone 6 garden – but I was hoping to let them have a bit of cold without a frost. But vines are dying off. . Seems like the flavor is best. Is that true or???

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