Planting calendar

Cucumber Planting Calendar

Choose a state to estimate seed starting, transplanting, outdoor sowing, and harvest timing for cucumber. Cucumbers grow quickly after nights warm up. Avoid cold soil and transplant shock.

Cucumber vine with fresh cucumbers growing on a garden trellis

Quick planting window

Start indoorsFebruary to March
TransplantMarch to April
Sow seedsMarch to April
Estimated harvestMay to June
RiskMedium risk

Month calendar

Scan the year by month to see seed starting, sowing, transplanting, and harvest timing.

Jan
Watch
Feb
Start indoors
Mar
Start indoorsTransplantSow seeds
Apr
TransplantSow seeds
May
Harvest
Jun
Harvest
Jul
Watch
Aug
Watch
Sep
Watch
Oct
Watch
Nov
Watch
Dec
Watch

Cucumber is frost sensitive. Wait until the conservative transplant or sowing window for California.

Next: ZIP code personalization

This is a state-level planning window based on typical frost timing and crop rules. Use local Extension guidance or a ZIP code frost-date tool before planting.

Planning notes

Days to maturity

58

Covered states

20

Maturity range

28-240 days

Crop overview pages compare state windows; open a specific state page to see that state's frost dates, heat risk, and Extension source.

Cucumber growing notes

The calendar window is only the first step. These growing details affect survival, plant vigor, and harvest quality.

Sun

Full sun.

Soil

Warm, fertile, well-drained soil.

Spacing

12 inches on a trellis or 36 inches for sprawling vines.

Container

Choose bush types in 5+ gallon containers with a trellis.

Watering

Keep evenly moist, especially during flowering and fruiting.

Common mistake

Planting into cold soil or disturbing roots during transplant.

Beginner tip

Sow outdoors once nights are warm, or transplant very gently.

Month window table

StateSpring transplant / sowSpring harvestFall transplant / sowFall harvest
CaliforniaMarch to AprilMay to JuneAugust to SeptemberOctober to November
New YorkMay to JuneJuly to AugustJuly to AugustSeptember to October
TexasMarch to AprilMay to JuneAugust to SeptemberOctober to November
WashingtonMay to JuneJuly to AugustJuly to AugustSeptember to October
New JerseyMay to JuneJuly to AugustJuly to AugustSeptember to October
FloridaFebruary to MarchApril to MaySeptember to OctoberNovember to December
North CarolinaApril to MayJune to JulyAugust to SeptemberOctober to November
GeorgiaApril to MayJune to JulyAugust to SeptemberOctober to November
IllinoisMay to JuneJuly to AugustJuly to AugustSeptember to October
OhioMay to JuneJuly to AugustJuly to AugustSeptember to October
PennsylvaniaMay to JuneJuly to AugustJuly to AugustSeptember to October
MichiganMay to JuneJuly to AugustJuly to AugustSeptember to October
ArizonaMarch to AprilMay to JuneAugust to SeptemberOctober to November
OregonMay to JuneJulyJuly to AugustSeptember to October
MassachusettsMay to JuneJuly to AugustJuly to AugustSeptember to October
MinnesotaMay to JuneJuly to AugustJuly to AugustSeptember to October
VirginiaApril to MayJune to JulyAugust to SeptemberSeptember to October
ColoradoJune to JulyJuly to AugustJuly to AugustSeptember to October
TennesseeApril to MayJune to JulyAugust to SeptemberOctober to November
MissouriApril to MayJune to JulyJuly to AugustSeptember to October

Sources and limits

This crop overview summarizes typical frost windows and crop rules across 20 states. Because it is not tied to one state, the links below point to representative state Extension sources; state and crop-state pages show the matching state source.

Note: this overview shows a sample of sources; each state page exposes its own Extension reference.

FAQ

When should I start cucumber indoors?

Cucumber is commonly started indoors about 3 weeks before the last frost date. The exact month changes by state.

Can I sow cucumber outdoors?

Cucumber can be sown outdoors when soil and nights are suitable. In California, the spring estimate is about March to April.

When should I transplant cucumber?

Cucumber is commonly transplanted about 2 weeks after the last frost date, after seedlings are hardened off.

How long does cucumber take to harvest?

Cucumber is listed at about 58 days to maturity. Cool weather, weak light, or stress can extend that timeline.

Is cucumber container friendly?

Yes. Choose bush types in 5+ gallon containers with a trellis.

What is the most common cucumber mistake?

Planting into cold soil or disturbing roots during transplant.

Is cucumber better in spring or fall?

Spring is usually safer; fall planting needs enough warm days before first frost.

Is this ZIP-code accurate?

No. V1 uses conservative state-level windows and reserves ZIP-code frost dates, USDA zone matching, and reminders for the next phase.