FrostCal

When to Plant Garlic in Delaware

In a typical Delaware location, plant in fall Oct 5 – Oct 19. Across the state, the fall planting window starts as early as Sep 28 in Hockessin and as late as Oct 19 in Claymont.

Method Direct sow
Days to maturity 240–270 days

Fall-planted crop only; not planted in spring in most climates.

Garlic Planting Dates by City

CityFall planting
WilmingtonOct 7 – Oct 21
DoverOct 7 – Oct 21
NewarkOct 5 – Oct 19
MiddletownOct 5 – Oct 19
BearOct 4 – Oct 18
BrooksideOct 5 – Oct 19
GlasgowOct 5 – Oct 19
HockessinSep 28 – Oct 12
SmyrnaOct 7 – Oct 21
Pike Creek ValleyOct 5 – Oct 19
MilfordOct 2 – Oct 16
ClaymontOct 19 – Nov 2
North StarOct 5 – Oct 19
Pike CreekOct 5 – Oct 19
Wilmington ManorOct 4 – Oct 18
SeafordOct 2 – Oct 16
GeorgetownOct 9 – Oct 23
ElsmereOct 7 – Oct 21
EdgemoorOct 7 – Oct 21
New CastleOct 4 – Oct 18

Showing the 20 most populous of 20 Delaware cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Delaware cities.

Frequently Asked Questions

When should I plant garlic in Delaware?

In a typical Delaware location, plant in fall Oct 5 – Oct 19. Across the state, the fall planting window starts as early as Sep 28 in Hockessin and as late as Oct 19 in Claymont.

When is the last frost in Delaware?

The average last spring frost in Delaware ranges from March 30 in Claymont to April 19 in Hockessin, based on NOAA 1991–2020 climate normals.

How long do garlic take to grow?

Garlic typically take 240–270 days from planting to harvest. Fall-planted crop only; not planted in spring in most climates.

Other Crops in Delaware

When to plant garlic in other states

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