When to plant · 23 cities · zones 6a–7a
When to plant basil in Indiana
Start Genovese Basil seeds indoors around Mar 25 and transplant around May 6 — the Indiana statewide median, counted from a last spring frost of Apr 22 across 807 ZIP codes and 124 NOAA stations.
The rule: Basil is damaged below about 50 °F, well before frost: transplant two weeks after the last frost, not on it.
Indiana basil, by step
Statewide median last frost Apr 22, first fall frost Oct 20, 2027 season. Each cultivar's own indoor lead time and days to maturity, same engine as the Plan Builder.
| Cultivar | Start indoors | Plant out | First harvest | Days |
|---|---|---|---|---|
| Genovese BasilGenovese | Mar 25 | May 6 | Jul 5 | 60 from transplant |
Tight means first harvest lands within two weeks of the median first fall frost. Statewide dates are the ZIP-weighted median of every NOAA 1991–2020 station Indiana's ZIP codes resolve to.
Basil in Indiana, city by city
Genovese Basil, scheduled from each city's nearest NOAA station — the same dates as its frost page.
| City | Last frost | Start indoors | Plant out | First harvest |
|---|---|---|---|---|
| Indianapoliszone 6b | Apr 20 | Mar 23 | May 4 | Jul 3 |
| Fort Waynezone 6a | Apr 24 | Mar 27 | May 8 | Jul 7 |
| Evansvillezone 7a | Apr 4 | Mar 7 | Apr 18 | Jun 17 |
| Fisherszone 6a | Apr 21 | Mar 24 | May 5 | Jul 4 |
| South Bendzone 6a | May 1 | Apr 3 | May 15 | Jul 14 |
| Carmelzone 6a | Apr 21 | Mar 24 | May 5 | Jul 4 |
| Bloomingtonzone 6b | Apr 15 | Mar 18 | Apr 29 | Jun 28 |
| Hammondzone 6a | Apr 23 | Mar 26 | May 7 | Jul 6 |
| Noblesvillezone 6a | Apr 21 | Mar 24 | May 5 | Jul 4 |
| Lafayettezone 6a | Apr 26 | Mar 29 | May 10 | Jul 9 |
| Greenwoodzone 6a | Apr 20 | Mar 23 | May 4 | Jul 3 |
| Garyzone 6a | Apr 22 | Mar 25 | May 6 | Jul 5 |
| Munciezone 6a | Apr 16 | Mar 19 | Apr 30 | Jun 29 |
| Westfieldzone 6a | Apr 21 | Mar 24 | May 5 | Jul 4 |
| Kokomozone 6a | Apr 27 | Mar 30 | May 11 | Jul 10 |
| Terre Hautezone 6a | Apr 15 | Mar 18 | Apr 29 | Jun 28 |
| Andersonzone 6a | Apr 19 | Mar 22 | May 3 | Jul 2 |
| Elkhartzone 6a | Apr 26 | Mar 29 | May 10 | Jul 9 |
| Jeffersonvillezone 7a | Mar 31 | Mar 3 | Apr 14 | Jun 13 |
| Columbuszone 6b | Apr 11 | Mar 14 | Apr 25 | Jun 24 |
| Mishawakazone 6a | May 1 | Apr 3 | May 15 | Jul 14 |
| Lawrencezone 6a | Apr 18 | Mar 21 | May 2 | Jul 1 |
| West Lafayettezone 6a | Apr 26 | Mar 29 | May 10 | Jul 9 |
What these basil become
What Indiana basil need
Genovese Sweet Basil Seed
The large-leaf, low-anise Italian basil that pesto is defined by. Thai and lemon basils are good plants and wrong ingredients.
Organic Seed Starter Potting MixMust have
Seed-starting mix is not potting soil with a nicer label — it is finer, lighter, and low in nutrients on purpose, because a seedling's first roots want air and moisture, not fertiliser.
T8 Full-Spectrum Grow Lights, 1 ft 4-packMust have
A south window in March delivers a fraction of the light a pepper seedling needs, and the plant tells you by stretching. Two inches of LED above the canopy for 16 hours a day fixes it permanently.
5-Gallon Fabric Grow Bags, 5-Pack
Fabric pots air-prune roots and drain faster than a plastic pot can, which is the entire reason container tomatoes fail. Five gallons is the honest minimum for a pepper; a tomato wants ten.
Ocean Forest Potting SoilMust have
Pre-charged with enough nutrition to carry a transplant for its first month without feeding, which is exactly the window when most container plants stall.
6" Micro-Tip Pruning SnipsMust have
Ninety percent of sauce-garden cutting is snipping a pepper stem or a basil node, and a fine-tipped snip does it better than any pruner. Pulling peppers by hand tears the branch.
Mesh Strainers, Stainless, 3-Count
The last pass before bottling. A fine mesh catches the skin fragments and seed shards that make a hot sauce gritty and clog a woozy bottle's dripper insert.
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Basil in Indiana: questions
When should I plant basil in Indiana?
Transplant around May 6 at the statewide median; across the state that date runs from Apr 25 in the warmest tenth of Indiana's ZIP codes to May 12 in the coldest. To cut the freeze risk to one year in ten, count from May 7 instead of the median last frost. Use the city table for your own town.
When do I start basil seeds indoors in Indiana?
Around Mar 25 for Genovese Basil: 4 weeks before the statewide median last frost, on soil held at 70–80 °F.
When is the last frost in Indiana?
The ZIP-weighted median of NOAA 1991–2020 station medians is Apr 22. In the warmest tenth of Indiana's ZIP codes the median last frost falls on or before Apr 11; in the coldest tenth, on or after Apr 28.
When will Indiana basil be ready to harvest?
Genovese Basil planted on the statewide date is ready around Jul 5: 60 days from transplant.
More for Indiana
- When to plant tomatoes
- When to plant peppers
- When to plant tomatillos
- When to plant onions
- When to plant cilantro
- When to plant carrots
- When to plant mustard greens
Basil in every state → · Indiana frost dates → · How frost-date math works →