It’s basically “does frost matter” — and near New Orleans it doesn’t, not the way heat does. The freeze-free season runs close to ten months, so nearly any tomato you buy has time to ripen before the cold comes back. What actually kills a crop is the long stretch of summer heat that stalls fruit set for weeks right in the middle of the season. So the real move is to plant a fast cherry or paste tomato for a sure spring harvest, then put in a second short-season variety in late summer for another round before frost.
What this comes down to in Louisiana
Near New Orleans, NOAA’s 1991-2020 climate normals put the last spring freeze between January 18 and February 8, and the first fall freeze between December 17 and January 8. That’s long enough that almost every catalog tomato variety has time to ripen before frost becomes a factor. The real limit on a Louisiana tomato season is the run of summer heat that can stall fruit set for weeks in the middle of the year. If you’ve already worked through the basics of growing tomatoes in Louisiana, the decision left is which varieties are worth the space, and that comes down to how fast they ripen relative to that heat pause and how much disease pressure they shrug off in a humid climate.
USDA’s Plant Hardiness Zone Map places Louisiana between zones 8a and 10a, with the Gulf Coast parishes toward the warmer end of that range and the northern parishes colder. The nine varieties below are ordered from fastest to slowest, so you can see where a short spring crop ends and where a long-season heirloom starts leaning on the fall window instead of the spring one.
Sakura
Sakura is a cherry tomato that catalogs list at about 55 days from transplant, the fastest of the varieties covered here. Fruit is small, round and meant for snacking or salads rather than sauce, and the vines keep setting new clusters for months once they get going. Set out early to late February near New Orleans, Sakura ripens by mid April and gives the earliest harvest of the bunch.
Sun Gold
Sun Gold needs about 57 days from transplant to first fruit, and its golden cherry tomatoes are sweet enough that most gardeners eat them straight off the vine before they reach the kitchen. It carries resistance to Tobacco Mosaic Virus and one race of Fusarium wilt, both useful in a humid Gulf Coast summer. Set out early to late February, first fruit lands in mid April, leaving well over two hundred days before the fall frost window even arrives.
Supersweet 100
Supersweet 100 runs about 60 days from transplant and produces long chains of small red cherry tomatoes, often a dozen or more to a cluster. It resists both verticillium wilt and one fusarium race, worth having in soil that has grown tomatoes before. First ripe fruit lands in late April, comfortably ahead of any heat-driven slowdown come July and August.
Jasper
Jasper also lists at 60 days and adds strong resistance to late blight along with some tolerance to early blight, two diseases that show up fast in wet Gulf Coast summers. The fruit is a small, deep red cherry tomato good for snacking or tossing whole into a skillet. Ripening this early means a spring planting can finish a full flush of fruit before the worst summer heat sets in, with time left over for a second flush once temperatures ease.
Amalfi
Amalfi is a paste tomato listed at 68 days from transplant, with a compact determinate habit that suits a container or a raised bed. It carries intermediate resistance to late blight, early blight and nematodes, all common pressures in Louisiana gardens. It ripens by early May on the earlier end of the February transplant window, giving a solid run of sauce tomatoes before summer heat slows fruit set.
Cherokee Purple
Cherokee Purple is a 72-day heirloom beefsteak grown for slicing, with dusky pink-purple skin and rich, dense flesh. It carries no listed disease resistance, so it depends more on site rotation and airflow than the hybrids around it. At 72 days it still finishes with roughly 226 days of margin before the fall frost window even starts, which means the limiting factor for this one is the summer heat pause, not the calendar.
Big Beef Plus
Big Beef Plus needs about 72 days from transplant and produces large, round, bright red slicing tomatoes on a tall indeterminate vine. It resists gray leaf spot and tomato mosaic virus along with nematodes, a useful combination in soil that has carried tomatoes for several seasons already. Its margin before frost matches Cherokee Purple’s, but the resistance package makes it the steadier performer through a wet, humid summer.
San Marzano II
San Marzano II is a classic paste tomato at 78 days from transplant, producing long, tapered red fruit built for canning and sauce. It has no listed disease resistance package, so it leans on the same rotation and spacing discipline as Cherokee Purple. First fruit lands around mid May from a February transplant, still with roughly 220 days of margin before the fall frost window near New Orleans.
Amish Paste
Amish Paste is the longest-season variety here, listed at 85 days from transplant, with large oxheart-shaped red fruit prized for canning. It carries no disease resistance rating, so plan on watching for leaf spot and blight through the season. Even at 85 days it still finishes with about 213 days of margin before the fall frost window from a spring transplant, though that margin shrinks fast if you’re aiming this variety at a second, fall-season planting instead.
| Variety | Days to Maturity | Type | First Ripe (New Orleans calc.) | Margin Before Fall Frost |
|---|---|---|---|---|
| Sakura | 55 | Indeterminate | Mid April | ~243 days |
| Sun Gold | 57 | Indeterminate | Mid April | ~241 days |
| Supersweet 100 | 60 | Indeterminate | Late April | ~238 days |
| Jasper | 60 | Indeterminate | Late April | ~238 days |
| Amalfi | 68 | Determinate | Early May | ~230 days |
| Cherokee Purple | 72 | Indeterminate | Early May | ~226 days |
| Big Beef Plus | 72 | Indeterminate | Early May | ~226 days |
| San Marzano II | 78 | Indeterminate | Mid May | ~220 days |
| Amish Paste | 85 | Indeterminate | Mid May | ~213 days |
Working it out for your own garden
The method matters more than any single date, because it survives a move to another parish or a colder-than-average year. Start from NOAA’s 1991-2020 normals for the New Orleans area: last spring freeze January 18 to February 8, first fall freeze December 17 to January 8. Subtract a variety’s days-to-maturity, counted from the actual transplant date rather than the day you sowed seed indoors, and you get a ripening window instead of a single day. That’s the same arithmetic the planting calendar for Louisiana walks through for spring transplant timing. This page is about deciding which varieties are worth running through it.
Take Sun Gold as a full example. Catalogs list it at 57 days from transplant. Setting it out early to late February, once spring freeze risk has passed, puts first ripe fruit in mid April. Counting forward to the December 17 to January 8 fall frost window leaves roughly 241 days of slack, far more time than the plant will realistically spend fruiting in one season. Sun Gold finishes with margin to spare under almost any weather, which is exactly why short-season cherry types are the safe choice for a spring planting.
Where a long-season variety runs out of room
The math looks different for a variety planted late for a fall crop instead of in spring. Amish Paste needs 85 days from transplant. Counting back 85 days from the December 17 to January 8 fall frost window lands in roughly late September to mid October as the last safe transplant date for a fall crop aimed at beating that frost. If summer heat delays that transplant, because the plant stalled through the hottest weeks or a replacement seedling had to be started late, an 85-day variety can miss the window entirely. A 55 to 60 day type like Sakura or Jasper, transplanted at that same late date, still has room to spare.
- Write down the variety’s days-to-maturity from the seed packet, not a guess.
- Count forward from your actual transplant date, not the date you meant to plant.
- Add a week or two of slack, since catalog figures shift with temperature and light.
- Check the count against the fall frost window if you’re planning a second, fall crop.
What changes across the state
Every figure on this page is measured at or near New Orleans, and Louisiana is long enough, north to south, that the same numbers do not hold everywhere. North Louisiana freezes harder and more reliably than the coast does. The Gulf sits close enough to the southern parishes to moderate winter temperatures there, which is part of why NOAA’s climate normals show a 32-degree freeze failing to occur at all in roughly one year out of seven at the New Orleans station. Move north toward Shreveport or Monroe and that pattern flips, with freezes arriving on a more predictable schedule and often harder when they do.
North versus south
That difference changes which end of this page’s variety list matters most where you garden. In the parishes closest to the coast, the season is so long relative to any of these cultivars’ days-to-maturity that frost almost never decides the outcome. The deciding question is whether the plant can hold fruit set through the hottest stretch of summer, when blossoms drop instead of setting fruit. Farther north, a harder and more reliable frost narrows the fall end of the season, so a long-season paste tomato like Amish Paste or San Marzano II started late for a fall crop carries more real risk of not finishing than it does near the coast.
Soil and drainage vary just as much as frost timing does. Heavy clay in parts of north Louisiana holds cold longer into spring than the sandy loam common in southern parishes, which can push a safe transplant date later than the general window even within the same USDA hardiness zone. Treat the New Orleans figures on this page as a starting point for the southern half of the state, and shift later into spring and earlier into fall as you move north or inland.
The mistakes this state punishes
The most common mistake is planting a long-season heirloom like Brandywine or Amish Paste as the only variety in the garden and expecting one wave of fruit to carry the whole season. Louisiana’s summer heat pause means a single planting date rarely produces tomatoes from spring straight through fall. Gardeners who stagger a short-season cherry type alongside a slicing or paste variety, and who plan a second transplant for a fall crop, get far more total fruit than those who plant once and wait.
Timing the freeze risk
The second mistake is trusting a warm stretch in January as a sign it’s safe to set out transplants. NOAA’s 1991-2020 normals put the last spring freeze at New Orleans anywhere from January 18 to February 8, a three-week range that reflects real year-to-year variation rather than indecision. Setting tender transplants out at the first warm week and losing them to a freeze in the second half of that window costs a gardener a month of season they can’t get back.
The third is ignoring pests until they’ve already done damage. Louisiana’s humidity and long warm season let certain insects show up earlier and stay active longer than they would farther north, so a spring-planted crop can run into pressure before a gardener used to a cooler climate would expect it. The pests that actually show up on Louisiana tomatoes are worth checking for on a regular schedule rather than only after damage appears, especially once the weather turns hot and humid.
Checking this against your county
Every number on this page comes from a single NOAA weather station near New Orleans, and it’s a starting point, not an instruction for your yard. Check your own county’s numbers before committing a season to a long-season variety, especially if you garden north of Interstate 10 or well inland from the coast, where frost timing shifts more than these figures show. The LSU AgCenter, the state’s land-grant extension service, publishes tomato variety and planting guidance by region at lsuagcenter.com and is the right place to confirm local timing before you buy seed. A call to your parish extension office is usually faster than searching online, and they can tell you what’s actually done well in gardens near you this season.
Common questions
Why did my tomatoes stop setting fruit in the middle of summer?
Extended summer heat is the usual cause, not frost or disease. Louisiana’s growing season, per NOAA’s climate normals for the New Orleans area, runs close to ten months, long enough that heat rather than the calendar decides when fruit set slows down. Once temperatures ease later in summer, plants that were kept alive and reasonably healthy through the pause often resume setting fruit for a fall harvest.
Can I get two harvests out of one growing season here?
Often yes, because the frost-free stretch is so long. A spring planting set out early to late February can finish its main flush well before summer heat sets in, and a second transplant later in the year can still mature before the New Orleans-area fall frost window of December 17 to January 8, provided the variety is short enough to fit the time left.
Is Cherokee Purple worth growing if it has no listed disease resistance?
It’s still a reasonable choice if you rotate where tomatoes grow each season and give plants enough spacing for airflow. Varieties like Big Beef Plus or Amalfi, which do carry resistance codes for gray leaf spot, nematodes or blight, are the lower-maintenance option in the same slicing or paste category, but an heirloom without resistance can still perform fine in a well-managed bed.
What’s the earliest tomato I can pick in Louisiana?
Among the varieties covered here, Sakura and Sun Gold are the fastest, both listed around 55 to 57 days from transplant. Set out early to late February in the New Orleans area, they put out first ripe fruit by mid April, though catalog days-to-maturity can run a week or two longer in a cooler-than-average spring.