Warm-Season Vegetable

When to Plant Cucumbers

Cool, crisp, and perfect for salads and pickling. Cucumbers thrive in warm weather and produce abundantly.

Sun

Full sun (6-8 hours)

Water

1-2 inches per week

Days to Harvest

50-70

Difficulty

beginner

Spacing

36"

Frost Tolerance

none

The Short Answer

Cucumbers are frost-sensitive and need warm soil and air temperatures to thrive. Start seeds indoors 3 weeks before your last frost date, then transplant outside 2 weeks after your last frost when soil temperatures reach at least 60°F. You can also direct sow seeds 2 weeks after your last frost. Enter your zip code on our homepage tool for exact dates.

How to Grow Cucumbers

Cucumbers are 95% water, which tells you everything about their growing requirements — consistent moisture is non-negotiable. Trellising produces straighter fruit, better air circulation, and easier harvesting. Bush varieties work well in containers. The most common mistake is waiting too long to pick: harvest at 6-8 inches for slicers and 2-4 inches for picklers. Overripe cucumbers turn bitter and signal the plant to stop producing. Pick daily during peak season — a single overlooked fruit can shut down production.

Starting Seeds Indoors

Begin cucumbers seeds indoors 3 weeks before your average last frost date. Seeds need soil temperatures of at least 60°F to germinate, which typically takes 3-7 days. Provide 12 hours of light per day using a south-facing window or grow lights.

Transplanting

Move seedlings outside 2 weeks after your last frost date, once soil temperatures reach 60°F. Harden off seedlings for 5 days before transplanting by gradually exposing them to outdoor conditions.

Direct Sowing

Cucumbers can be direct sown 2 weeks after your last frost date. Plant seeds 1" deep, spaced 36" apart.

Growing Tips

Trellis for straighter fruits and better air circulation. Pick regularly to encourage more production.

Companion Planting

Good companions:

Beans Corn Peas Sunflowers

Keep away from:

Potatoes Aromatic Herbs

Cucumbers Planting Dates by State

Click your state for cucumbers planting dates specific to your location:

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

Note: Planting dates are based on average frost dates from NOAA Climate Normals (30-year averages). Actual conditions vary year to year. Always check your local forecast before planting frost-sensitive crops.

Last reviewed: March 29, 2026