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When to Plant Cilantro in Rhode Island

Cilantro is a dual-purpose herb providing fresh leaves (cilantro) and dried seeds (coriander). It bolts quickly in heat, producing flowers beloved by beneficial insects.

Rhode Island spans USDA hardiness zones 6a, 6b, 7a (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

Find Your County

Click your county for exact Cilantro planting dates based on your local frost dates.

Hover over a county to see details. Click to view planting guide.

Cilantro Planting Calendar for Rhode Island

โ–ธ Zone 6a ~193 day growing season ยท Full guide โ†’

Last frost: April 10 ยท First frost: October 20 ยท 193 day season

Activity When Date Range
Start Indoors March 6 Mar 6 โ€“ Mar 20
Transplant Outdoors April 3 Apr 3 โ€“ Apr 17
Direct Sow March 27 Mar 27 โ€“ Apr 17
Harvest May 15 May 15 โ€“ Jul 17
Fall Sowing August 11 Aug 11 โ€“ Aug 25
โ–ธ Zone 6b ~205 day growing season ยท Full guide โ†’

Last frost: April 3 ยท First frost: October 25 ยท 205 day season

Activity When Date Range
Start Indoors February 27 Feb 27 โ€“ Mar 13
Transplant Outdoors March 27 Mar 27 โ€“ Apr 10
Direct Sow March 20 Mar 20 โ€“ Apr 10
Harvest May 8 May 8 โ€“ Jul 10
Fall Sowing August 16 Aug 16 โ€“ Aug 30
โ–ธ Zone 7a ~221 day growing season ยท Full guide โ†’

Last frost: March 25 ยท First frost: November 1 ยท 221 day season

Activity When Date Range
Start Indoors February 18 Feb 18 โ€“ Mar 4
Transplant Outdoors March 18 Mar 18 โ€“ Apr 1
Direct Sow March 11 Mar 11 โ€“ Apr 1
Harvest April 29 Apr 29 โ€“ Jul 1
Fall Sowing August 23 Aug 23 โ€“ Sep 6

Growing Tips for Rhode Island

Succession sow every 2-3 weeks. Provide afternoon shade in warm weather. Harvest leaves before flowering or allow some plants to go to seed for coriander and self-sowing.

Frequently Asked Questions

When should I plant Cilantro in Rhode Island?

Planting dates for Cilantro in Rhode Island depend on your USDA zone. Rhode Island spans zones 6a, 6b, 7a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Rhode Island for planting?

Rhode Island contains USDA hardiness zones 6a, 6b, 7a. Your specific zone depends on your location within the state โ€” northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.