Frost Dates for Dover, OH 44622

Last spring frost April 28 · First fall frost October 18 · 173 frost-free days · USDA Zone 6b

ZIP 44622 has about 18,700 people.

Moderate season: 173 frost-free days. Spring frost risk spans April 12–May 15 (33 days). Fall frost risk spans October 4–November 2 (29 days).

Frost probability for 44622

Frost10%50%90%
Spring (last frost)May 15April 28April 12
Fall (first frost)October 4October 18November 2

Dates come from NOAA 1971–2000 freeze probabilities at AKRON CANTON AP (41.2 km away); the 50% date is the median year.

Which crops fit a 173-day season in Dover

In Dover (173 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

CropStart indoorsPlant out / sowDays you haveVerdictLast sow date
TomatoMar 24May 12–May 19131fits: 80 days to maturity, 131 available after May 12.Jun 18
PepperMar 17May 12–May 19131fits: 75 days to maturity, 131 available after May 12.Jun 23
LettuceMar 3Mar 31–Apr 7208two-plantings: Plant Mar 31 and again by Aug 27; both mature before Oct 25.Aug 27
Carrots—Apr 7–Apr 14215fits: 70 days to maturity, 215 available after Apr 7.Aug 16
CucumberApr 7May 12–May 19145two-plantings: Plant May 12 and again by Jul 22; both mature before Oct 4.Jul 22
Beans—May 5–May 19159two-plantings: Plant May 5 and again by Jul 29; both mature before Oct 11.Jul 29
Peas—Mar 3–May 12236fits: 65 days to maturity, 236 available after Mar 3.Aug 7
ZucchiniApr 14May 12–May 19145two-plantings: Plant May 12 and again by Jul 27; both mature before Oct 4.Jul 27
OnionFeb 3Mar 31–Apr 14208fits: 100 days to maturity, 208 available after Mar 31.—
Spinach—Mar 3–Apr 21250two-plantings: Plant Mar 3 and again by Sep 15; both mature before Nov 8.Sep 15
KaleFeb 17Mar 31–Apr 14222two-plantings: Plant Mar 31 and again by Aug 31; both mature before Nov 8.Aug 31
BroccoliMar 3Mar 31–Apr 14208fits: 80 days to maturity, 208 available after Mar 31.Jul 23
CabbageMar 3Mar 31–Apr 14222fits: 70 days to maturity, 222 available after Mar 31.Aug 16
Radish—Mar 3–May 26236two-plantings: Plant Mar 3 and again by Sep 16; both mature before Oct 25.Sep 16
Beets—Mar 3–May 26236two-plantings: Plant Mar 3 and again by Aug 17; both mature before Oct 25.Aug 17
Potatoes—Apr 14–Apr 21194fits: 90 days to maturity, 194 available after Apr 14.—
Garlic—Oct 18278overwinter: Plant Oct 18 to Nov 8; harvest the following summer.Nov 8
Strawberry—Mar 24–May 19229perennial: A perennial: plant Mar 24; it fruits from the following year and keeps producing for several years.—
CornMar 31May 5–May 12145fits: 75 days to maturity, 145 available after May 5.Jun 30
PumpkinApr 14May 12–May 12138fits: 100 days to maturity, 138 available after May 12.Jun 5
CauliflowerMar 17Apr 21–May 5187fits: 75 days to maturity, 187 available after Apr 21.Jul 28
Swiss ChardMar 3Apr 14–Apr 14194two-plantings: Plant Apr 14 and again by Aug 17; both mature before Oct 25.Aug 17
Arugula—Mar 3–May 26250two-plantings: Plant Mar 3 and again by Sep 15; both mature before Nov 8.Sep 15
Brussel SproutsMar 3Mar 31–Apr 14222fits: 100 days to maturity, 222 available after Mar 31.Jul 17
Butternut SquashApr 14May 12–May 19138fits: 100 days to maturity, 138 available after May 12.Jun 5
EggplantMar 10May 12–May 19131fits: 70 days to maturity, 131 available after May 12.Jun 28
OkraMar 31May 5–May 12152two-plantings: Plant May 5 and again by Jul 27; both mature before Oct 4.Jul 27
BasilMar 24May 19–May 19138two-plantings: Plant May 19 and again by Jul 22; both mature before Oct 4.Jul 22
Cilantro—Mar 31–Apr 21208two-plantings: Plant Mar 31 and again by Aug 22; both mature before Oct 25.Aug 22
ParsleyFeb 17May 5–May 12173fits: 70 days to maturity, 173 available after May 5.Aug 2
CeleryFeb 17May 5–May 19173fits: 120 days to maturity, 173 available after May 5.Jun 13
ScallionsFeb 17Mar 31–Apr 14222two-plantings: Plant Mar 31 and again by Aug 26; both mature before Nov 8.Aug 26
Turnip—Mar 31–Apr 14222two-plantings: Plant Mar 31 and again by Sep 5; both mature before Nov 8.Sep 5
Kohlrabi—Mar 17–Mar 31236two-plantings: Plant Mar 17 and again by Aug 31; both mature before Nov 8.Aug 31
Bok ChoyMar 31Apr 21–Apr 28187two-plantings: Plant Apr 21 and again by Aug 27; both mature before Oct 25.Aug 27
CollardsFeb 17Mar 31–Apr 14222two-plantings: Plant Mar 31 and again by Aug 26; both mature before Nov 8.Aug 26
CantaloupeApr 14May 12–May 19131fits: 85 days to maturity, 131 available after May 12.Jun 13
ChivesFeb 3May 5–May 12187fits: 90 days to maturity, 187 available after May 5.—
Dill—Mar 3–May 26236two-plantings: Plant Mar 3 and again by Aug 17; both mature before Oct 25.Aug 17
OreganoFeb 17May 5–May 12187fits: 80 days to maturity, 187 available after May 5.—
RosemaryFeb 3May 5–May 12173fits: 80 days to maturity, 173 available after May 5.—
SageMar 3May 5–May 12187fits: 75 days to maturity, 187 available after May 5.—
ThymeFeb 17May 5–May 12187fits: 90 days to maturity, 187 available after May 5.—
CalendulaMar 17Apr 14–Apr 28194two-plantings: Plant Apr 14 and again by Aug 22; both mature before Oct 25.Aug 22
CosmosMar 31Apr 28–May 12159two-plantings: Plant Apr 28 and again by Jul 22; both mature before Oct 4.Jul 22
LavenderFeb 3Apr 28–May 12194fits: 90 days to maturity, 194 available after Apr 28.—
MarigoldsMar 17Apr 28–May 5159two-plantings: Plant Apr 28 and again by Aug 1; both mature before Oct 4.Aug 1
MelonsApr 14May 12–May 19131fits: 85 days to maturity, 131 available after May 12.Jun 13
Mint—Apr 28–May 12194fits: 90 days to maturity, 194 available after Apr 28.—
NasturtiumsMar 31Apr 28–May 5159two-plantings: Plant Apr 28 and again by Jul 27; both mature before Oct 4.Jul 27
Pole Beans—May 5–May 19152fits: 65 days to maturity, 152 available after May 5.Jul 17
Spaghetti SquashApr 14May 12–May 19138fits: 90 days to maturity, 138 available after May 12.Jun 15
Sunflowers—Apr 28–May 12159fits: 70 days to maturity, 159 available after Apr 28.Jul 12
TomatillosMar 3May 5–May 12138fits: 75 days to maturity, 138 available after May 5.Jun 23
WatermelonApr 14May 5–May 12138fits: 80 days to maturity, 138 available after May 5.Jun 18
Yellow SquashApr 14May 12–May 19145two-plantings: Plant May 12 and again by Jul 27; both mature before Oct 4.Jul 27
ZinniasMar 31Apr 28–May 12159two-plantings: Plant Apr 28 and again by Jul 22; both mature before Oct 4.Jul 22

Month by month in Dover

MonthWhat to do
JanuaryPlan your garden layout and order seeds. Research varieties suited to your frost dates.
FebruaryStart indoors: Chives (Feb 3), Lavender (Feb 3), Onion (Feb 3), Rosemary (Feb 3), Celery (Feb 17), Collards (Feb 17), +5 more.
MarchStart indoors: Broccoli (Mar 3), Brussel Sprouts (Mar 3), Cabbage (Mar 3), Lettuce (Mar 3), Sage (Mar 3), Swiss Chard (Mar 3), +14 more. Direct sow from: Arugula (Mar 3), Beets (Mar 3), Dill (Mar 3), Peas (Mar 3), Radish (Mar 3), Spinach (Mar 3), +3 more. Transplant from: Broccoli (Mar 31), Brussel Sprouts (Mar 31), Cabbage (Mar 31), Collards (Mar 31), Kale (Mar 31), Lettuce (Mar 31), +2 more. Plant: Strawberry (Mar 24).
AprilStart indoors: Cucumber (Apr 7), Butternut Squash (Apr 14), Cantaloupe (Apr 14), Melons (Apr 14), Pumpkin (Apr 14), Spaghetti Squash (Apr 14), +3 more. Direct sow from: Carrots (Apr 7), Potatoes (Apr 14), Sunflowers (Apr 28). Transplant from: Calendula (Apr 14), Swiss Chard (Apr 14), Bok Choy (Apr 21), Cauliflower (Apr 21), Cosmos (Apr 28), Lavender (Apr 28), +4 more. Last frost around April 28.
MayDirect sow from: Beans (May 5), Pole Beans (May 5). Transplant from: Celery (May 5), Chives (May 5), Corn (May 5), Okra (May 5), Oregano (May 5), Parsley (May 5), +17 more.
JuneLast sowing dates: Butternut Squash (Jun 5), Pumpkin (Jun 5), Cantaloupe (Jun 13), Celery (Jun 13), Melons (Jun 13), Spaghetti Squash (Jun 15), +6 more.
JulyLast sowing dates: Sunflowers (Jul 12), Brussel Sprouts (Jul 17), Pole Beans (Jul 17), Basil (Jul 22), Cosmos (Jul 22), Cucumber (Jul 22), +8 more.
AugustLast sowing dates: Marigolds (Aug 1), Parsley (Aug 2), Peas (Aug 7), Cabbage (Aug 16), Carrots (Aug 16), Beets (Aug 17), +10 more.
SeptemberLast sowing dates: Turnip (Sep 5), Arugula (Sep 15), Spinach (Sep 15), Radish (Sep 16).
OctoberDirect sow from: Garlic (Oct 18). First frost around October 18.
NovemberLast sowing dates: Garlic (Nov 8).
DecemberClean up spent plants. Add compost to beds. Rest, review, and plan next year's garden.

Frequently Asked Questions

What is the last frost date for Dover, OH (ZIP 44622)?

The median last spring frost date for Dover, OH (ZIP code 44622) is around April 28. This is the 50th-percentile date — meaning half of all years see frost end before this date. Use the 10% and 90% dates to understand the full range of risk in your area. One year in ten frost ends before April 12; one in ten it runs past May 15.

What is the first fall frost date in Dover, OH?

The median first fall frost date for Dover, OH is around October 18. Plan to harvest or protect frost-sensitive crops like tomatoes and peppers at least a week before this date to avoid losses. The first frost arrives around October 4 in the earliest one-in-ten years, so cover tomatoes and peppers from then.

How long is the growing season in Dover, OH?

The frost-free growing season in Dover is about 173 days. This window — from your last spring frost to your first fall frost — is when warm-season vegetables thrive. Cold-hardy crops like kale, spinach, and peas can extend your season by weeks on either side. In Dover (173 frost-free days, a moderate season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

What USDA hardiness zone is Dover, OH?

Dover, OH is in USDA hardiness zone 6b (2023 USDA Plant Hardiness Zone Map). Zones come from the average coldest winter temperature, so they tell you which perennials survive the winter; the frost dates on this page tell you when to plant.

When should I start tomatoes indoors in Dover, OH?

Start tomatoes indoors Mar 24 and plant out May 12 in Dover. The planner uses the local median last frost and this crop's indoor-start and transplant offsets.

How many plantings of lettuce fit in Dover?

Two: plant Mar 31 and again by Aug 27; both mature before Oct 25.

When do I plant garlic in Dover?

Oct 18 to Nov 8; it overwinters and is ready the following summer.

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