When to plant · 14 cities · zones 6b–7a
When to plant cilantro in Connecticut
Direct sow cilantro around Apr 6 — the Connecticut statewide median, counted from a last spring frost of Apr 20 across 289 ZIP codes and 29 NOAA stations.
The rule: Direct sow in 60–70 °F soil, a short row every two weeks from four weeks before the last frost until the heat arrives, then again from late summer.
Connecticut cilantro, by step
Statewide median last frost Apr 20, 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 | Sow | First harvest | Days |
|---|---|---|---|---|
| CilantroSlow Bolt (Coriandrum sativum) | Direct sow | Apr 6 | May 21 | 45 from sow |
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 Connecticut's ZIP codes resolve to.
Cilantro in Connecticut, city by city
Cilantro, scheduled from each city's nearest NOAA station — the same dates as its frost page.
| City | Last frost | Sow | First harvest |
|---|---|---|---|
| Bridgeportzone 7a | Apr 5 | Mar 22 | May 6 |
| Stamfordzone 7a | Apr 17 | Apr 3 | May 18 |
| New Havenzone 7a | Apr 17 | Apr 3 | May 18 |
| Hartfordzone 6b | Apr 17 | Apr 3 | May 18 |
| Waterburyzone 6b | Apr 26 | Apr 12 | May 27 |
| Norwalkzone 7a | Apr 17 | Apr 3 | May 18 |
| Danburyzone 6b | Apr 20 | Apr 6 | May 21 |
| New Britainzone 6b | Apr 17 | Apr 3 | May 18 |
| Bristolzone 6b | Apr 25 | Apr 11 | May 26 |
| Meridenzone 6b | Apr 26 | Apr 12 | May 27 |
| West Havenzone 7a | Apr 17 | Apr 3 | May 18 |
| Milfordzone 7a | Apr 5 | Mar 22 | May 6 |
| Middletownzone 6b | Apr 26 | Apr 12 | May 27 |
| Sheltonzone 6b | Apr 5 | Mar 22 | May 6 |
What these cilantro become
What Connecticut cilantro need
Cilantro / Coriander Seed
Bolts in a heartbeat and there is nothing you can do about it — so you succession-sow instead of fighting it. Non-negotiable in salsa verde and zhoug.
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.
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.
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.
AG-30 Frost Protection Row Cover
AG-30 buys roughly 6 °F of frost protection while passing about 70% of light — enough to carry a crop through an early-October cold snap that would otherwise end your season two weeks short.
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.
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Cilantro in Connecticut: questions
When should I plant cilantro in Connecticut?
Direct sow around Apr 6 at the statewide median; across the state that date runs from Mar 31 in the warmest tenth of Connecticut's ZIP codes to Apr 19 in the coldest. To cut the freeze risk to one year in ten, count from May 6 instead of the median last frost. Use the city table for your own town.
When is the last frost in Connecticut?
The ZIP-weighted median of NOAA 1991–2020 station medians is Apr 20. In the warmest tenth of Connecticut's ZIP codes the median last frost falls on or before Apr 14; in the coldest tenth, on or after May 3.
When will Connecticut cilantro be ready to harvest?
Cilantro planted on the statewide date is ready around May 21: 45 days from sow.
More for Connecticut
- When to plant tomatoes
- When to plant peppers
- When to plant tomatillos
- When to plant basil
- When to plant onions
- When to plant carrots
- When to plant mustard greens
Cilantro in every state → · Connecticut frost dates → · How frost-date math works →