FrostCal

When to Plant Cauliflower in Rhode Island

In a typical Rhode Island location, start seeds indoors Feb 21 – Mar 7, then transplant outdoors Mar 28 – Apr 4. Across the state, the outdoor planting window starts as early as Mar 24 in Newport and as late as Apr 17 in Narragansett. For a fall crop, plant around Aug 21 – Aug 28.

Method Start indoors, then transplant
Days to maturity 55–85 days

Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Cauliflower Planting Dates by City

CityStart indoorsTransplantFall planting
ProvidenceFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
WarwickFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
CranstonFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
PawtucketMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
East ProvidenceFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
WoonsocketMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
CoventryMar 4 – Mar 18Apr 8 – Apr 15Aug 11 – Aug 18
CumberlandMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
North ProvidenceFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
South KingstownMar 13 – Mar 27Apr 17 – Apr 24Aug 3 – Aug 10
West WarwickMar 4 – Mar 18Apr 8 – Apr 15Aug 11 – Aug 18
JohnstonFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
North KingstownMar 9 – Mar 23Apr 13 – Apr 20Aug 6 – Aug 13
NewportFeb 17 – Mar 3Mar 24 – Mar 31Sep 4 – Sep 11
BristolFeb 21 – Mar 7Mar 28 – Apr 4Aug 24 – Aug 31
SmithfieldMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
LincolnMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
Central FallsMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
WesterlyFeb 21 – Mar 7Mar 28 – Apr 4Aug 22 – Aug 29
PortsmouthFeb 21 – Mar 7Mar 28 – Apr 4Aug 24 – Aug 31
MiddletownFeb 21 – Mar 7Mar 28 – Apr 4Aug 26 – Sep 2
BarringtonFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
NarragansettMar 13 – Mar 27Apr 17 – Apr 24Aug 3 – Aug 10
East GreenwichFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
Newport EastFeb 21 – Mar 7Mar 28 – Apr 4Aug 26 – Sep 2
Valley FallsMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
WarrenFeb 21 – Mar 7Mar 28 – Apr 4Aug 21 – Aug 28
North SmithfieldMar 4 – Mar 18Apr 8 – Apr 15Aug 10 – Aug 17
North ScituateMar 7 – Mar 21Apr 11 – Apr 18Aug 10 – Aug 17

Showing the 29 most populous of 29 Rhode Island cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Rhode Island cities.

Frequently Asked Questions

When should I plant cauliflower in Rhode Island?

In a typical Rhode Island location, start seeds indoors Feb 21 – Mar 7, then transplant outdoors Mar 28 – Apr 4. Across the state, the outdoor planting window starts as early as Mar 24 in Newport and as late as Apr 17 in Narragansett. For a fall crop, plant around Aug 21 – Aug 28.

When is the last frost in Rhode Island?

The average last spring frost in Rhode Island ranges from April 7 in Newport to May 1 in Narragansett, based on NOAA 1991–2020 climate normals.

How long do cauliflower take to grow?

Cauliflower typically take 55–85 days from planting to harvest. Fussier than broccoli about temperature swings; start indoors 5-7 weeks before last frost, transplant 1-2 weeks before last frost.

Other Crops in Rhode Island

When to plant cauliflower in other states

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