When shopping for seeds at your local garden center or seed catalog, you may notice some are marked ‘heirloom,” while others are labeled “hybrid.” Have you ever wondered what these terms mean and if one is better for you than the other?
These terms seem to create a lot of confusion among novice and experienced gardeners alike. There are those who swear that heirloom seeds are the only way to go because they think hybrids plants are inferior. On the other hand, many hybrid seed fans are convinced these are a better all-around choice because they tend to be more vigorous producers and are less susceptible to disease and pests.
In reality, there may be room in every garden for both types of plants. To better understand the distinction between heirloom and hybrid seed varieties, it helps to look at how they came to be. it comes down to open-pollination vs careful manipulation.
rest of article in the link above and below.
I personally would never use either hybrid or GMO. I refuse to plant them. I plant only heirlooms. If i can’t find one then I will wait until I do. This is a good article though for learning which seed is which.