When to plant Mache in Lake County, CO
In Zone 5a (Lake County), direct-sow Mache between June 7 and June 28 for spring, after the June 21 last-frost mark. A second sowing from June 21 to July 5 extends the harvest into fall.
When to Plant Mache in Lake County, CO
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.
Lake County, Colorado is in USDA Zone 5a. The average last spring frost is June 21 and the first fall frost is August 30, giving you a growing season of approximately 70 days.
At an elevation of 7,687 feet, Lake County receives approximately 21.2 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Mache to ensure they mature before fall.
Lake County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Mache Planting Timeline — Lake County, CO
Mache Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | May 17 | May 17 – May 31 |
| Transplant Outdoors | June 21 | Jun 21 – Jul 5 |
| Direct Sow | June 7 | Jun 7 – Jun 28 |
| Harvest | August 2 | Aug 2 – Sep 6 |
| Fall Sowing | June 21 | Jun 21 – Jul 5 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Start Indoors |
| June | Transplant Outdoors Direct Sow Fall Sowing |
| July | Transplant Outdoors Fall Sowing |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
70 days in Lake County
Growing Tips for Lake 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
Check more plant combinations with our Companion Planting Checker →
Mache in Other Locations
Frequently Asked Questions
When should I plant Mache in Lake County, CO?
Lake County is in Zone 5a with an average last frost of June 21. Plan your Mache planting based on this frost date — see the calendar above for exact timing.
What planting zone is Lake County, CO?
Lake County, Colorado is in USDA Hardiness Zone 5a. The average last spring frost is June 21 and first fall frost is August 30.
When should I plant Mache in Lake County, CO?
In Lake County, CO, plant Mache after the last frost (around June 21) and before the first frost (around August 30). Best results when soil holds above 50°F.
What growing zone is Lake County, CO for Mache?
Lake County sits in USDA Zone 5a. Mache grows reliably in zones 2a through 10b, so it's a good fit here.
Can Mache grow in Lake County's climate?
Yes — Mache grows well in Lake County's temperate climate. Lake County averages a 70-day frost-free season, with last frost around June 21 and first frost around August 30.
Your Lake County Garden Planner — Free
A 22-page printable planner built for Lake County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.