When to Plant Cucumber in Miller County, MO
Cucumbers are a warm-season vine crop available in slicing and pickling varieties. They are prolific producers when given warmth, moisture, and a trellis to climb.
Miller County, Missouri is in USDA Zone 6a. The average last spring frost is April 6 and the first fall frost is October 27, giving you a growing season of approximately 204 days.
At an elevation of 1,086 feet, Miller County receives approximately 30.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Cucumber during the growing season.
Miller County Soil Profile
Soil Type
Silt Loam
Soil pH
5.7-6.7
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Plant Water Budget
Cucumber Planting Timeline — Miller County, MO
Cucumber Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 2 | Mar 2 – Mar 16 |
| Transplant Outdoors | April 20 | Apr 20 – May 4 |
| Direct Sow | April 13 | Apr 13 – May 4 |
| Harvest | June 15 | Jun 15 – Aug 10 |
Plant 0.5" deep · 24" apart · Rows 48" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
High — keep soil consistently moist
Days to Maturity
50–70 days
Soil pH
6 – 7
USDA Zone
Zone 6a
Growing Season
204 days
Growing Tips for Miller County
Direct sow after last frost or start indoors 3 weeks early. Provide a trellis for vining types to save space and improve air circulation. Harvest frequently to encourage production.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Cucumber in Other Locations
Frequently Asked Questions
When should I plant Cucumber in Miller County, MO?
Miller County is in Zone 6a with an average last frost of April 6. Plan your Cucumber planting based on this frost date — see the calendar above for exact timing.
What planting zone is Miller County, MO?
Miller County, Missouri is in USDA Hardiness Zone 6a. The average last spring frost is April 6 and first fall frost is October 27.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Miller County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.