05/27/2026
IDK who needs to hear this but there are exactly zero GMO vegetable plants at any independent garden center. There are multiple layers as to why trying to sell home gardeners a GMO corn plant makes absolutely zero sense from any angle whatsoever 😂😂.
A GMO is, specifically, produced by using a transgenic plasmid to insert a desired DNA sequence from one species into another. It is *not* an F1 hybrid, which is a cross between two homogeneous parents that produce heterogeneous offspring. To oversimplify, a homogeneous individual carries no dormant traits, and heterogeneous individuals do. So, if you cross two F1 hybrids and create what are known as F2 hybrids, then those offspring will express a wide variety of traits that were dormant in the parents. If you remember Punnet squares from high school, it all makes sense.
As you can imagine, GMO seeds are extremely expensive, and the genetics inserted into GMO seeds are aimed at improving large-scale commercial agriculture; they serve absolutely zero benefit to a home gardener other than, I guess, if that home gardener also owns Bayer stock 📈📈
An "heirloom", or open-pollinated, plant is genetically stable and produces offspring that are at least reasonably similar to the parents. This is why you cannot reliably cross two Better Boy tomatoes, but you *can* cross two Black Russian tomatoes consistently 🍅
"Heirloom" does *not* necessarily mean it's organic, and F1 hybrids are not excluded from the organic label. Only GMO crops are impossible to be labeled organic.
Why does this matter? Because knowing which varieties are F1 hybrids and which are heirlooms is how you know which seeds to save and which ones to buy.
GMO flowers do exist, btw. And they're not all doing crazy things like making glowing petunias. Using plasmids to insert genes is just a technique and has been used for traits as simple as orange flowers.
