When to Plant Mache in Sanders County, MT
Mache (corn salad) is a cold-hardy salad green with small, rounded, tender leaves and a mild, nutty flavor. It thrives in cool weather and even overwinters in many climates.
Sanders County, Montana is in USDA Zone 5a. The average last spring frost is May 24 and the first fall frost is September 13, giving you a growing season of approximately 112 days.
At an elevation of 5,775 feet, Sanders County receives approximately 16.4 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Mache during the growing season. With low rainfall, drip irrigation is essential for growing Mache successfully. Mulch heavily to conserve soil moisture.
Sanders County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.9
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
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Mache Planting Timeline — Sanders County, MT
Mache Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 19 | Apr 19 – May 3 |
| Transplant Outdoors | May 24 | May 24 – Jun 7 |
| Direct Sow | May 10 | May 10 – May 31 |
| Fall Sowing | July 5 | Jul 5 – Jul 19 |
| Harvest | July 5 | Jul 5 – Aug 9 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Start Indoors Transplant Outdoors Direct Sow |
| June | Transplant Outdoors |
| July | Fall Sowing Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Partial Shade (3-6 hours)
Water
Moderate — regular watering
Days to Maturity
40–60 days
Soil pH
6 – 7.5
USDA Zone
Zone 5a
Growing Season
112 days
Growing Tips for Sanders County
Direct sow in early spring or late summer for fall and winter harvest. Seeds need light to germinate so press gently into soil surface. Harvest whole rosettes.
Companion Planting
Good Companions
Level Up Your Garden
Mache in Other Locations
Frequently Asked Questions
When should I plant Mache in Sanders County, MT?
Sanders County is in Zone 5a with an average last frost of May 24. Plan your Mache planting based on this frost date — see the calendar above for exact timing.
What planting zone is Sanders County, MT?
Sanders County, Montana is in USDA Hardiness Zone 5a. The average last spring frost is May 24 and first fall frost is September 13.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Sanders County gardeners in Zone 5a organize planting dates, track what's growing, and never miss a planting window.
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