When to Plant Komatsuna in Lea County, NM
Komatsuna (Japanese mustard spinach) is a versatile Asian green with glossy, dark leaves and a mild, sweet flavor. It is extremely cold-hardy and heat-tolerant.
Lea County, New Mexico is in USDA Zone 7b. The average last spring frost is April 2 and the first fall frost is November 7, giving you a growing season of approximately 219 days.
At an elevation of 4,857 feet, Lea County receives approximately 17.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 93°F, providing good warmth for Komatsuna during the growing season. Sandy soil warms quickly in spring — great for early planting — but Komatsuna will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Komatsuna successfully. Mulch heavily to conserve soil moisture.
Lea County Soil Profile
Soil Type
Sandy Loam
Soil pH
7.3-8.9
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 10/10 — consider drought-tolerant varieties and mulching
Komatsuna Planting Timeline — Lea County, NM
Komatsuna Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 26 | Feb 26 – Mar 12 |
| Transplant Outdoors | April 2 | Apr 2 – Apr 16 |
| Direct Sow | March 19 | Mar 19 – Apr 9 |
| Fall Sowing | August 29 | Aug 29 – Sep 12 |
| Harvest | May 7 | May 7 – Jun 11 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | — |
| August | Fall Sowing |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Partial Shade (3-6 hours)
Water
Moderate — regular watering
Days to Maturity
35–50 days
Soil pH
6 – 7.5
USDA Zone
Zone 7b
Growing Season
219 days
Growing Tips for Lea County
Direct sow in spring or fall. One of the most forgiving Asian greens for all seasons. Harvest outer leaves or cut whole plants. Excellent for stir-fries, soups, or salads.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Komatsuna in Other Locations
Frequently Asked Questions
When should I plant Komatsuna in Lea County, NM?
Lea County is in Zone 7b with an average last frost of April 2. Plan your Komatsuna planting based on this frost date — see the calendar above for exact timing.
What planting zone is Lea County, NM?
Lea County, New Mexico is in USDA Hardiness Zone 7b. The average last spring frost is April 2 and first fall frost is November 7.
Plan Your Garden with Confidence
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