When to plant cucumbers
Short answer
Plant cucumbers about 2 weeks after your last spring frost. In a mid climate (zone 5) that's around Apr 29, starting seeds indoors about Mar 25. Enter your ZIP for your exact dates.
| Climate zone | Start indoors | Plant outside | Harvest |
|---|---|---|---|
| Zone 1 | Dec 25 | Jan 29 | Mar 25 |
| Zone 2 | Jan 25 | Mar 1 | Apr 25 |
| Zone 3 | Feb 17 | Mar 24 | May 18 |
| Zone 4 | Mar 9 | Apr 13 | Jun 7 |
| Zone 5 | Mar 25 | Apr 29 | Jun 23 |
| Zone 6 | Apr 9 | May 14 | Jul 8 |
| Zone 7 | Apr 24 | May 29 | Jul 23 |
| Zone 8 | May 11 | Jun 15 | Aug 9 |
Higher climate-zone numbers are colder, so planting shifts later. Cucumbers is a tender crop. Enter your ZIP in the calculator for your exact zone and dates.
What sets the timing for cucumbers
When to plant cucumbers comes down to one date: your last spring frost. Cucumbers is a tender crop, so it goes in about 2 weeks after your last spring frost. In a mid climate (zone 5) that's around Apr 29.
Give it a head start: sow seeds indoors about 3 weeks before your last spring frost (around Mar 25 in zone 5), then move seedlings out once conditions are right. From there it's roughly 55 days to harvest.
Because that anchor date moves with climate, plant-out for cucumbers ranges from about Mar 24 in warm zone 3 to May 29 in cold zone 7. Enter your ZIP in the calculator for the exact dates in your zone.
What sets the timing
| Factor | Effect on timing |
|---|---|
| Frost anchor | Timing counts from your last spring frost |
| Hardiness | Cucumbers is tender — it waits until the soil warms after frost |
| Indoor start | Start seeds 3 weeks before your last spring frost |
| Days to harvest | About 55 days from planting to harvest |
| Climate zone | Higher (colder) zones push plant-out later; warmer zones let you start sooner |
| Soil & weather | Needs warm soil — cold, wet ground stunts or rots it |
How cucumbers compares
Plant-out date in a mid climate (zone 5), against an early hardy crop and a late tender one.
| Crop | Plant outside (zone 5) |
|---|---|
| Peas (hardy · plants early) | Mar 11 |
| Cucumbers | Apr 29 |
| Tomatoes (tender · plants late) | Apr 29 |
Tips for growing cucumbers
- Don't rush cucumbers outside — cold soil stalls it. Wait until after your last spring frost and, ideally, until nights stay mild.
- Give cucumbers a 3 weeks indoor head start under a bright light before transplanting.
- Count roughly 55 days from planting to harvest, and stagger sowings a few weeks apart for a longer picking window.
- Enter your ZIP in the calculator for cucumbers dates tuned to your exact climate zone.
Your exact dates
Open the planting calendarOther crops
Frequently asked questions
When should I plant cucumbers?
Plant cucumbers about 2 weeks after your last spring frost. That's around Apr 13 in zone 4 and May 14 in zone 6.
When do I start cucumbers seeds indoors?
Start cucumbers seeds indoors about 3 weeks before your last frost, then transplant after the frost passes. That's roughly Apr 9 in zone 6.
How long until cucumbers is ready to harvest?
About 55 days from planting until first harvest. In zone 6, cucumbers planted around May 14 is typically ready near Jul 8.