Zone 6a on the map looks like a promise, but it’s the frost dates underneath it that decide whether your tomatoes actually finish. Columbus can go from a warm April to a wet, late transplant window with no warning, and a variety picked for its flavor alone won’t tell you if it has enough days left to beat October. What matters isn’t the zone number or the packet’s maturity claim in isolation — it’s the gap between them, and that gap changes everything below.
What this comes down to in Ohio
In Columbus, the USDA Plant Hardiness Zone Map (2023, based on 1991-2020 normals) puts the area at zone 6a, within the state’s broader 5b-6b range, and OSU Extension’s Ohio Gardening Calendar sets the frost window that actually drives variety choice: last spring frost May 5 to May 15, first fall frost October 5 to October 15. The number that matters more than the calendar date is the margin between a variety’s days-to-maturity and that fall frost window. A cultivar with a wide margin survives a cold, wet spring that pushes transplanting later than planned. One with a narrow margin does not. The ten varieties below run from shortest to longest season, so you can see exactly where your own risk tolerance sits before you order seed.
Sakura
Sakura needs about 55 days from transplant to first ripe fruit, the shortest of any variety here, producing small, glossy red, oval cherry tomatoes for snacking and salads. Set out mid May to late May, it ripens by late July and carries 74 days of margin before the Columbus fall frost window, the widest cushion on this list.
Sun Gold
Sun Gold reaches its first ripe fruit in about 57 days, yielding small, round, bright tangerine-orange cherry tomatoes with thin skin and a sugary flavor. It carries resistance to Tobacco Mosaic Virus and Fusarium Wilt race 1, both rated high, and its 72 days of margin makes it forgiving even if planting slips past the earliest part of the window.
Supersweet 100
Supersweet 100 matures in about 60 days, setting long clusters of small round red cherry tomatoes on a vigorous indeterminate vine that needs sturdy staking. It resists Verticillium Wilt and Fusarium race 1, and its 69 days of margin leaves plenty of room for a slow start.
Jasper
Jasper also runs about 60 days to first fruit, producing small, round, glossy red cherry tomatoes on tall indeterminate vines. Its high resistance to Late Blight matters in Ohio’s humid summers, and with 69 days of margin it handles a delayed transplant without losing the season.
Amalfi
Amalfi needs about 68 days, a determinate plant that sets red, oblong plum fruit suited to sauce and canning rather than slicing. It carries intermediate resistance to Late Blight and Early Blight, useful given Ohio’s wet summer stretches, and keeps 61 days of margin before the fall frost window.
Cherokee Purple
Cherokee Purple takes about 72 days, an heirloom beefsteak with large, slightly ribbed fruit that ripen to a dusky purple-pink with darker shoulders, prized for slicing. It carries no listed disease resistance, so it depends more on a clean site and good airflow, and its 57 days of margin leaves less room to recover from a rough start than the cherries above.
Big Beef Plus
Big Beef Plus also runs about 72 days, a large, round, deep red beefsteak for slicing with resistance to Nematodes, Gray Leaf Spot, and Tomato Mosaic Virus. That built-in resistance, paired with the same 57 days of margin as Cherokee Purple, makes it the sturdier choice for a similar schedule.
Tiren
Tiren needs about 75 days, an indeterminate plant producing red, oblong paste fruit for sauce, with resistance to Verticillium Wilt, Tomato Mosaic Virus, and Fusarium race 1. Its 54 days of margin is workable but leaves less buffer than the varieties above if the transplant date slips toward the end of May.
San Marzano II
San Marzano II takes about 78 days, the classic long, narrow, pointed red paste tomato used for canned sauce, on a tall indeterminate vine. With only 51 days of margin, it needs transplanting at the start of the mid-May to late-May window, not the end of it, to ripen comfortably ahead of frost.
Amish Paste
Amish Paste is the longest-season variety here at about 85 days, an heirloom paste tomato with large, red, oxheart-shaped fruit prized for sauce and canning. Its 44 days of margin is the tightest on this list, which makes it a variety for a warm, well-drained site and an on-time transplant, not for a garden that runs cool or wet into June.
| Variety | Days to maturity | Margin before fall frost | Fruit type |
|---|---|---|---|
| Sakura | 55 | 74 days | Cherry |
| Sun Gold | 57 | 72 days | Cherry |
| Supersweet 100 | 60 | 69 days | Cherry |
| Jasper | 60 | 69 days | Cherry |
| Amalfi | 68 | 61 days | Paste |
| Cherokee Purple | 72 | 57 days | Beefsteak |
| Big Beef Plus | 72 | 57 days | Beefsteak |
| Tiren | 75 | 54 days | Paste |
| San Marzano II | 78 | 51 days | Paste |
| Amish Paste | 85 | 44 days | Paste |
Working it out for your own garden
The dates above come from a simple piece of arithmetic, and it’s worth doing it yourself rather than trusting a table, because it survives a move to a different county or a strange year. Start from OSU Extension’s frost window for Columbus: last spring frost May 5 to May 15, first fall frost October 5 to October 15. Do not subtract days from the frost window itself. Add the variety’s days-to-maturity number to the earliest and latest transplant dates the window allows, then see where the resulting ripening range falls next to the fall frost window. The general steps for hardening off and getting transplants into the ground are already covered in growing tomatoes in Ohio. This section is just the date math layered on top.
The arithmetic, worked twice
Take Sun Gold, at 57 days from transplant. Transplanting mid May to late May and adding 57 days lands the first ripe fruit in late July, which matches the catalogue estimate, and leaves 72 days before the earliest end of the October 5 to October 15 fall frost window. That is a wide enough gap that a week of cool weather in June, which slows growth without stopping it, will not push the harvest past frost.
Now take Amish Paste, at 85 days. The same mid May to late May transplant window puts first ripe fruit in late August, with only 44 days of margin before frost, the thinnest on this list. If cold, wet soil after a warm early spell delays transplanting by a week or two, or if the plant sits stalled for its first couple of weeks in the ground rather than growing, that cushion narrows fast. This is where the line falls: short-season cherries and mid-season paste types absorb a bad week without consequence, but an 85-day heirloom does not have one to spare. For the county-level version of this same calculation, see Tomato Planting Dates in Ohio: Counting Back From Your Frost Window.
What changes across the state
Every figure above is measured at or near Columbus, and Ohio is not one climate. The USDA hardiness map puts the state anywhere from zone 5b to 6b, and that half-zone spread comes from real differences in terrain and water, not measurement error. Northern counties near Lake Erie get a moderating effect from the lake in fall, which tends to push the first freeze later than inland areas at the same latitude, while the same lake keeps spring soil cooler longer, delaying the point when it’s safe to transplant. Southern Ohio, along the Ohio River valley, generally runs warmer in both directions, with an earlier last frost and a later first frost than the state average.
Elevation and local terrain
Higher ground in the unglaciated southeast, the Appalachian foothill counties, tends to run cooler than the flatter, lower-lying parts of the state, and frost can settle into low spots and valley bottoms well after it has cleared open, elevated ground nearby. A gardener in one of those valleys should treat the Columbus-based window as a starting point and expect their own frost-free stretch to run shorter, which pulls every variety’s margin down by roughly the same amount. None of this changes which cultivar suits a short season. It changes how much margin you actually have to work with, which is exactly why the county-level check in the next section matters more than the state-wide range does.
The mistakes this state punishes
The costliest mistake in Ohio is planting into cold soil right after a warm stretch. A run of warm April days feels like permission, but soil temperature lags air temperature by days, and a tomato transplant set into cold, wet ground stalls instead of growing, which quietly eats into whatever margin a variety was supposed to have. Wait for OSU Extension’s mid May to late May transplant window to actually arrive, not for a warm afternoon that arrives before it.
- Choosing an 85-day heirloom like Amish Paste, or a 78-day slicer like Brandywine, in a garden that already runs cool or shaded, leaving no buffer if August turns wet.
- Transplanting at the very end of the window and still expecting a long-season paste tomato like San Marzano II to ripen with room to spare.
- Skipping the hardening-off period to save a few days, which stresses the plant and slows it down more than the days it saved.
- Ignoring disease pressure until fruit is already spotting, instead of watching for it from midsummer on, as covered in Tomato Pests in Ohio: Which Ones Actually Show Up Here.
The fix for all four is the same: treat the transplant window as a floor, not a suggestion, and match the variety’s days-to-maturity to the margin you can actually count on, not the one a catalogue photo makes you want.
Checking this against your county
Everything above is anchored to Columbus, and it is only a starting point. Ohio runs from USDA zone 5b to 6b, and a county at the cooler end of that range needs a shorter-season variety, or more margin, than these figures suggest. OSU Extension keeps a network of county offices, reachable through its main site at extension.osu.edu, that can confirm the frost window for your specific location and point you to the state’s own tomato-growing guidance. A five-minute call there is worth more than stretching a Columbus figure across a county it was never measured in.
Common questions
Can I still plant a long-season tomato if I’m running late?
You can, but the margin shrinks fast. A variety like Amish Paste already has only 44 days of margin before the Columbus-area fall frost window when transplanted on schedule. Push that transplant back by two or three weeks and you are gambling on an early frost not arriving. Switch to something in the 55 to 65-day range instead if you are past the mid-May to late-May window.
Do cherry tomatoes actually ripen faster than big slicers?
Generally yes. Smaller fruit needs less time to develop, which is why Sakura, Sun Gold, and Supersweet 100 all post catalogue days-to-maturity figures under 60, while beefsteaks like Cherokee Purple and Big Beef Plus run closer to 72. The fruit size on the seed packet is a decent shorthand for how much season a variety needs.
What if my county’s frost dates are different from Columbus?
They probably are, at least a little. Treat every figure on this page as a Columbus-area reference point and check your own county’s frost window through your local OSU Extension office before locking in a variety with a tight margin.
Does starting seeds indoors earlier let me grow a longer-season variety?
It gets you a bigger transplant, not an earlier transplant date. The mid-May to late-May window is set by soil and air temperature, not by how big your seedling is, so starting seed early indoors only helps if you also give the transplant more time to grow before it goes in the ground. It does not shift the frost risk on the back end of the season.