When to Plant Arugula in Webster County, MO
Arugula is a fast-growing cool-season green with a peppery, nutty flavor. It is excellent in salads and can be harvested as baby greens or mature leaves.
Webster County, Missouri is in USDA Zone 6a. The average last spring frost is April 11 and the first fall frost is October 22, giving you a growing season of approximately 194 days.
At an elevation of 1,274 feet, Webster County receives approximately 38.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Arugula during the growing season.
Webster County Soil Profile
Soil Type
Silt Loam
Soil pH
5.6-6.6
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
Arugula Planting Timeline — Webster County, MO
Arugula Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 7 | Mar 7 – Mar 21 |
| Transplant Outdoors | April 11 | Apr 11 – Apr 25 |
| Direct Sow | March 28 | Mar 28 – Apr 18 |
| Fall Sowing | August 13 | Aug 13 – Aug 27 |
| Harvest | May 16 | May 16 – Jul 18 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Partial Shade (3-6 hours)
Water
Moderate — regular watering
Days to Maturity
30–50 days
Soil pH
6 – 7
USDA Zone
Zone 6a
Growing Season
194 days
Growing Tips for Webster County
Sow seeds directly every 2-3 weeks for continuous harvest. Provide afternoon shade in warm weather to prevent bolting. Harvest outer leaves first to extend production.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Arugula in Other Locations
Frequently Asked Questions
When should I plant Arugula in Webster County, MO?
Webster County is in Zone 6a with an average last frost of April 11. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.
What planting zone is Webster County, MO?
Webster County, Missouri is in USDA Hardiness Zone 6a. The average last spring frost is April 11 and first fall frost is October 22.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Webster 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.