OaklandCityFarmer said:
It's definitely worth a try!
There could be some issues though. There's always different cultivars out there that are specifically grown in very different conditions than those in your backyard or homestead. Most of the big producers use hybrids that are not always true to the seed and may have issues later.
All I'm saying is if you're depending on your seeds to grow out food for your family for the season best go with a source you can trace and trust.
just my opinion
And, that's my opinion, also. I have enjoyed almost unlimited garden space the last few years BUT if you plant it, you have to take care of it! I just hate to "knock myself out" for the entire growing season with no reward at harvest-time.
It doesn't mean I won't try new things - and maybe I'm a little too cautious - but I have fun (and a measure of success

).
journey11 said:
I did that once with spaghetti squash and they came out just perfect. Most of those things are grown in such massive fields that they don't get cross pollinated with other things easily.
I bet that this is true and fairly safe. Other soopermarket veggies may well not be expensive hybrid varieties. However, these varieties, as OaklandCityFarmer says, may not be the best suited for your part of the country. Regarding squash:
Wife''s link lays out the different species quite clearly and, generally, the species won't cross with each other. However, be advised that there is certainly accidental crossing possible. The most likely one is with the involvement of
summer squash, like zucchini.
Most pumpkins, acorn squash, delicata, spaghetti,
and summer squash are Cucurbita pepo. They will cross. The fruit is a part of the parent plant but the seeds are hybrid. My experience with these hybrids is that they are essentially worthless. You just won't be interested in eating them!
And, that's what vegetable gardening mostly about -- having good food to eat

!
Steve