Hybrid vs. Heirloom Tomatoes: What’s the Difference?
We explore some specifics so you can grow the fruit that's right for you!
Quick Reference: Hybrid vs. Heirloom Tomatoes
- Heirloom: open pollinated by insects or wind, grown from seed handed down for generations, usually 40 to 50 years old or more. Rich flavor, mixed looks, less disease resistance.
- Hybrid: bred by crossing two varieties on purpose to combine the best traits of each parent, such as bigger size, better yield, and disease resistance. Uniform fruit, dependable plants.
- Neither is a GMO: both hybrids and heirlooms are the result of ordinary pollination, not laboratory gene editing.
- For canning: choose determinate varieties, which set one big crop at once. For all-summer picking, choose indeterminate.
- By the Moon: tomatoes are an above-ground crop, so plant during the light, or waxing, of the Moon.
You are standing at the seed rack in spring, and the tomato section alone runs a dozen packets deep. Cherry, beefsteak, paste, striped, and purple, some marked hybrid and some marked heirloom. More people are growing their own food this 2026 season, and tomatoes top the list, because nothing beats a garden tomato in a salad or on a BLT, and they are one of the easiest vegetables to grow. With far more varieties on the shelf than there were a decade ago, the labels can get confusing. Here is how hybrid and heirloom tomatoes differ, so you can grow the fruit that is right for you.
Hybrid vs. Heirloom Tomatoes: The Short Answer
An heirloom tomato is open pollinated and grown from seed passed down through generations. A hybrid tomato is bred on purpose by crossing two parent varieties to combine their best traits. Heirlooms are prized for old-fashioned flavor and quirky looks. Hybrids are prized for dependable, uniform harvests. Neither one is genetically modified. Here is the difference at a glance.
What Makes a Tomato an Heirloom?
Heirloom tomatoes are open pollinated, which means they are pollinated by insects or wind without any human intervention. The seed has been handed down for generations in a particular region, hand-selected by gardeners for a special trait like flavor, color, or shape. As a rule of thumb, a variety grown from seed that is more than 40 to 50 years old, passed down through the generations of that plant, is what earns the name heirloom.
Heirlooms lack the deep red color and the sugar-processing ability that many modern tomatoes were bred to have, so the ripening plant does not spend its energy making that uniform red. That is why an heirloom harvest can look mixed and even a little homely, with green shoulders, pink streaks, and yellow blushes. Most heirlooms are also not as disease resistant as hybrids, so they ask for a bit more attention in the garden. What you get in return is the old-fashioned, garden-to-table flavor that keeps gardeners saving the same seeds decade after decade. The University of Minnesota Extension has a plain-English guide to growing tomatoes if you want to match a variety to your own ground.
So What Is a Hybrid Tomato?
Hybrids are created when plant breeders intentionally cross-pollinate at least two different varieties of a plant to produce an offspring that carries the best trait of each parent, such as bigger size or better disease resistance. The catch comes when you try to save the seed. Hybrid seeds will not produce the same cultivar the next year, and will instead grow into one of the parent plants. Most hybrid seeds are sterile and will not germinate at all.
You can check whether your hybrid tomato seeds are still viable by placing them on a damp paper towel for a few days. Some will not sprout, others will, and what comes up may be a pleasant surprise. In general, hybrids are bred to combine a set of favorable traits: dependability, easy care, early maturity, better yield, improved flavor, a specific plant size, and disease resistance.
While hybrid plants typically yield fruit that is uniform in appearance, much like what you would see at the supermarket, heirloom vegetables produce a harvest that can be mixed and may come on less predictably. Fruit size can vary greatly, even on the same plant.
Note: hybrid and heirloom tomato varieties are not genetically modified organisms (GMO). Both are the result of ordinary pollination, the same process that has been going on in gardens and fields for as long as tomatoes have grown. If you want to make the most of every plant, you can even regrow certain vegetables from kitchen scraps.
Determinate vs. Indeterminate: The Best Type for Canning
When you are choosing tomato varieties, there are basically two growth types, and this matters more than hybrid or heirloom if you plan to put up jars of sauce. Every packet is either determinate or indeterminate.
Determinate plants are the ones to pick if you want a mass, one-time bloom and harvest. The plant blooms almost all at once, sets its fruit, and ripens a big crop over a short window, which is exactly what you want for canning. Succession planting a fresh set every two weeks keeps that harvest rolling so your kitchen is not swamped on a single afternoon. Indeterminate plants, by contrast, produce steadily. The more you pick, the more they bloom and set, and one plant will keep you picking right through to the first frost.
For canning specifically, look for paste tomatoes such as Roma or San Marzano. They carry thicker walls and less water than a slicing tomato, so your sauce cooks down faster and thicker. Many gardeners plant a block of determinate paste tomatoes for sauce and salsa, then tuck in an indeterminate cherry or beefsteak nearby for fresh eating all season. For more on getting seedlings in the ground at the right depth, see our guide to planting tomatoes.
Gardening by the Moon for Tomatoes
Tomatoes grow their fruit above ground, which makes them an above-ground crop. Traditional Gardening by the Moon wisdom says to plant above-ground crops during the light, or waxing, of the Moon, the stretch between the new Moon and the full Moon. Root crops like carrots and potatoes go in during the dark, or waning, of the Moon. Direct scientific proof is limited, but generations of gardeners have used the calendar to time their work, and it costs nothing to try it alongside good soil and steady watering.
- Tomatoes are an above-ground crop. Favor the light, or waxing, of the Moon for planting.
- The Gardening by the Moon Calendar lists this month’s Best Days to plant above-ground crops in your area.
Companion Plants for Tomatoes
Tomatoes keep good company in the garden. Basil is the classic partner, said to improve flavor and help mask the plants from pests, and many gardeners tuck marigolds nearby to draw pests away. Carrots, lettuce, garlic, onions, and nasturtiums are all friendly neighbors. Keep tomatoes away from potatoes, since the two share the same diseases and can pass blight back and forth, and give cabbage-family plants their own bed. For a fuller pairing chart, see our companion planting guide.
Growing Tomatoes Across the Country
Tomatoes love warmth, so the calendar shifts with your region. The rule is the same everywhere: wait until nights stay above 50 degrees and the danger of frost has passed before setting plants out.
In warm regions, heirlooms often shine because there is a long, easy season to ride out their slower, less predictable ripening. In cooler or shorter-season areas, an early-maturing hybrid can be the surer bet, since it is bred for dependability and disease resistance. Many gardeners grow both, and let the weather decide the winner each year. Do what works for your garden and your table.
Hybrid and Heirloom Tomatoes: Common Tomato Questions
What is the difference between hybrid vs. heirloom tomatoes?
An heirloom is open pollinated by insects or wind and grown from seed passed down for generations, usually 40 to 50 years old or more. A hybrid is bred on purpose by crossing two parent varieties to combine their best traits, like yield and disease resistance. Heirlooms are known for flavor and mixed looks. Hybrids are known for uniform, dependable harvests. Neither is a GMO.
Are hybrid or heirloom tomatoes genetically modified?
No. Both hybrid and heirloom tomatoes are the result of ordinary pollination, not laboratory gene editing. Hybrids are simply the offspring of two deliberately crossed parent plants, and heirlooms come from seed saved and handed down over many years. Neither is a genetically modified organism.
Which tomatoes are best for canning?
Choose determinate varieties, which bloom almost all at once and ripen one big crop over a short window, ideal for putting up sauce. Paste types like Roma and San Marzano have thicker walls and less water, so they cook down faster. Succession plant a fresh set every two weeks to keep the harvest steady rather than swamping your kitchen in a single day.
What is the difference between determinate and indeterminate tomatoes?
Determinate plants set a mass, one-time bloom and harvest over a short window, which is great for canning. Indeterminate plants produce steadily, and the more you pick the more they bloom, keeping you in fresh tomatoes right through to the first frost. Many gardeners grow some of each.
Can I save seeds from a hybrid tomato?
Not reliably. Hybrid seeds will not produce the same cultivar, and will instead grow into one of the parent plants, and most hybrid seeds are sterile and will not germinate at all. You can test viability by placing seeds on a damp paper towel for a few days. Heirloom seeds, by contrast, grow true to the parent year after year.
Do heirloom tomatoes taste better than hybrids?
Many gardeners think so, and heirlooms are prized for deep, old-fashioned flavor. The tradeoff is that most heirlooms are less disease resistant and ripen less predictably than hybrids, which are bred for dependability and better yield. Taste is personal, so grow a few of each and decide for yourself.
Kevin Cutlip
Kevin Cutlip has been a Personal Garden Coach for over 25 years. He owns KevinsGarden.com, and is known nationwide through his gardening advice in his monthly newsletter, TV appearances and speaking engagements throughout the southeast.
- Kevin Cutlip
I do not understand how a hybrid becomes an heirloom. If you save a hybrid seeds they do not come back true but after 40-50 years it becomes an heirloom? How?
Please what is best hybrid tomatoes that can give better yield and better disease resistance?.
We always recommend checking with your local agricultural co-operative extension. They are a wealth of knowledge about what will fare best in your area. Better Boy and Early Girl are two of my favorites year after year.
Yh
Should I put the hybrid tomato seeds directly from the tomato onto the paper towel to determine if they are viable, or should I ferment them first?
Hi Anna Ruth, we found this information that you may find helpful: Reliable Seed Germination Tests
Question –
Which Type tastes better?
They’re all delicious when they’re home grown.
rmj92
LOL!! You are getting varieties in reverse, and forward as well it seems. I had a compost area about 15 years ago, that everything just was happy. I pulled all kinds of veggies out of there, and every year I had several varieties of Tomatoes, and I didn’t actually care, they were free.. One year I had Lemon Boy, and had never ever grew them, so the hybridization was breaking down. BUT, as you are refining your “evercrop” as you grow, you are in fact hybridizing in your own environment, or de-hybridizing them as I explained in the article. Tomato’s are amazing. I think it’s 428 chemical processes going on at any given time in each plant, so messing with any one of them, can change the species…
When you save your seeds, start testing viability using the damp paper towel set up, and check daily. Some will root early, some later. Separate them as they germinate, and check in separate containers… You will find your answer. Are they determinate or indeterminate? I explained each in the article as well. Gardening is cool eh?
Lisa Schaefer,
So I am wondering about this achievement you are proposing. “Pure organic, no cross pollination”. Like from bees etc? Greenhouse and 138 mghtz tuning fork is my only reply. I am perplexed about your query of cross pollinating. If it’s a plant, and it is already pure, 100% that plant, as the fruit produces, regardless of wind, bees, etc, it will be the same. It has to be 3 generations out of man made fertilizers to be certified as “organic”. You can email me if you like to get more into specifics at Kevin@Kevinsgarden.com
I need help on how to grow plants and collect the seeds. But the seeds from the plant have to be organic and have pure seeds. I have thought of putting plastic milk containers over the plant after I plant the seeds. Then as the plant grows putting a plastic like cover over the mature plants So there isn’t any cross pollination. This is being done for a seed lab. L.S.
10 years ago, I started a tomato garden by accident. Some store bought cherry and roma tomatoes had spoiled so I tossed them into a grass less area in my back yard for the birds to eat. Well, the birds didn’t eat them and about 3 months later I had about 40 plants coming up. I let the healthiest/strongest of the 40 get to transfer transplant size and then I put them in proper containers/soil with cages.
9 years later, I am still starting my tomatoes from that first set of seeds that came up on their own. Those tomatoes have been cross fertilized by the bees/insects and the fruit I get each year becomes less acidic,more juicy and less perfectly round. Some are still cherry size but most become slice and recipe use sized. I don’t know if these now qualify as my own ‘heirloom’ variety.
? Any comments/info for me ? Thanks.
Hey Angela ,
The first obvious way is when buying them is the packet seed or planted types, the label will tell you. As for wondering AFTER the fact, Determinate types will stop forming new shoots after blossom production has occurred. Indeterminate types will keep shooting after blossoms appear.