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When to Plant Tomatoes in Delaware

Delaware spans USDA hardiness 7a to 8a (zones 7a to 8a on this page). Plant tomatoes by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.

Jump to: Zone 7a · Zone 7b · Zone 8a

Tomatoes planting calendar for Delaware, Zone 7a

Average last spring frost

April 15

Average first fall frost

October 20

🌱

Start seeds indoors

Mar 4

🌿

Transplant outdoors

Apr 29

🌾

Projected first harvest

Jul 16

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 7a (approximate)

Most tomatoes mature in about 55 to 85 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Tomatoes planting calendar for Delaware, Zone 7b

Average last spring frost

April 10

Average first fall frost

October 30

🌱

Start seeds indoors

Feb 27

🌿

Transplant outdoors

Apr 24

🌾

Projected first harvest

Jul 11

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 7b (approximate)

Most tomatoes mature in about 55 to 85 days depending on the variety. Full zone 7 guide (both 7a and 7b) →

Tomatoes planting calendar for Delaware, Zone 8a

Average last spring frost

April 1

Average first fall frost

November 10

🌱

Start seeds indoors

Feb 18

🌿

Transplant outdoors

Apr 15

🌾

Projected first harvest

Jul 2

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Start indoors🌿 Growing outside🌾 HarvestTodayZone 8a (approximate)

Most tomatoes mature in about 55 to 85 days depending on the variety. Full zone 8 guide (both 8a and 8b) →

Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.

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HomeSown turns your ZIP code into a personalized planting calendar, watering reminders, and pest help. Free to start.

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tomatoes — full zone guide