FrostCal

When to Plant Parsley in Illinois

In a typical Illinois location, start seeds indoors Feb 23 – Mar 9, then transplant outdoors Apr 6 – Apr 13. Across the state, the outdoor planting window starts as early as Mar 18 in Granite City and as late as Apr 17 in Roscoe.

Method Start indoors, then transplant
Days to maturity 70–90 days

Slow to germinate; start indoors 6-8 weeks before last frost, transplant 1-2 weeks before last frost (biennial, cold-tolerant).

Parsley Planting Dates by City

CityStart indoorsTransplant
ChicagoFeb 13 – Feb 27Mar 27 – Apr 3
AuroraFeb 22 – Mar 8Apr 5 – Apr 12
RockfordFeb 27 – Mar 13Apr 10 – Apr 17
JolietFeb 22 – Mar 8Apr 5 – Apr 12
NapervilleMar 3 – Mar 17Apr 14 – Apr 21
PeoriaFeb 19 – Mar 5Apr 2 – Apr 9
SpringfieldFeb 18 – Mar 4Apr 1 – Apr 8
North PeoriaFeb 19 – Mar 5Apr 2 – Apr 9
ElginMar 1 – Mar 15Apr 12 – Apr 19
WaukeganMar 5 – Mar 19Apr 16 – Apr 23
ChampaignFeb 18 – Mar 4Apr 1 – Apr 8
CiceroFeb 14 – Feb 28Mar 28 – Apr 4
BloomingtonFeb 24 – Mar 10Apr 7 – Apr 14
Arlington HeightsFeb 22 – Mar 8Apr 5 – Apr 12
EvanstonMar 1 – Mar 15Apr 12 – Apr 19
SchaumburgMar 5 – Mar 19Apr 16 – Apr 23
BolingbrookFeb 23 – Mar 9Apr 6 – Apr 13
DecaturFeb 17 – Mar 3Mar 31 – Apr 7
PalatineFeb 28 – Mar 14Apr 11 – Apr 18
SkokieMar 1 – Mar 15Apr 12 – Apr 19
Des PlainesFeb 19 – Mar 5Apr 2 – Apr 9
Orland ParkFeb 22 – Mar 8Apr 5 – Apr 12
Tinley ParkFeb 26 – Mar 12Apr 9 – Apr 16
Oak LawnFeb 13 – Feb 27Mar 27 – Apr 3
BerwynFeb 14 – Feb 28Mar 28 – Apr 4
Mount ProspectFeb 22 – Mar 8Apr 5 – Apr 12
NormalFeb 28 – Mar 14Apr 11 – Apr 18
WheatonMar 3 – Mar 17Apr 14 – Apr 21
Oak ParkFeb 14 – Feb 28Mar 28 – Apr 4
Hoffman EstatesMar 5 – Mar 19Apr 16 – Apr 23

Showing the 30 most populous of 242 Illinois cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Illinois cities.

Frequently Asked Questions

When should I plant parsley in Illinois?

In a typical Illinois location, start seeds indoors Feb 23 – Mar 9, then transplant outdoors Apr 6 – Apr 13. Across the state, the outdoor planting window starts as early as Mar 18 in Granite City and as late as Apr 17 in Roscoe.

When is the last frost in Illinois?

The average last spring frost in Illinois ranges from April 1 in Granite City to May 1 in Roscoe, based on NOAA 1991–2020 climate normals.

How long do parsley take to grow?

Parsley typically take 70–90 days from planting to harvest. Slow to germinate; start indoors 6-8 weeks before last frost, transplant 1-2 weeks before last frost (biennial, cold-tolerant).

Other Crops in Illinois

When to plant parsley in other states

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