When to Plant Komatsuna in Jackson County, OH
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.
Jackson County, Ohio is in USDA Zone 6a. The average last spring frost is April 21 and the first fall frost is October 22, giving you a growing season of approximately 184 days.
At an elevation of 831 feet, Jackson County receives approximately 31.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Komatsuna during the growing season.
Jackson County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-6.8
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.
Soil Compatibility in Jackson County
How your county's soil matches Komatsuna's growing requirements.
Soil pH
Your soil pH (6.2–6.8) is within Komatsuna's preferred range (6.0–7.5).
Soil Texture
The silt loam soil in Jackson County is excellent for Komatsuna — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.1%) — Komatsuna will thrive.
How to Plant Komatsuna
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Komatsuna
Sow every 4 weeks. Last sowing by Sep 02 to harvest before frost.
For a dedicated fall crop, sow by Aug 13.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Komatsuna Planting Timeline — Jackson County, OH
Komatsuna Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 17 | Mar 17 – Mar 31 |
| Transplant Outdoors | April 21 | Apr 21 – May 5 |
| Direct Sow | April 7 | Apr 7 – Apr 28 |
| Fall Sowing | August 13 | Aug 13 – Aug 27 |
| Harvest | May 26 | May 26 – Jun 30 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Harvest |
| June | Harvest |
| July | — |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
1"/week · 1-2 times/week
📅 Days to Maturity
35–50 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 6a
📆 Growing Season
184 days in Jackson County
Growing Tips for Komatsuna in Jackson County
Direct sow Komatsuna outdoors after April 21 in Jackson County when soil has warmed and frost danger has passed.
Your generous 184.0-day season in Jackson County allows multiple plantings of Komatsuna. Sow every 17.0 days for continuous harvest.
Common pests for Komatsuna in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
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 Jackson County, OH?
Jackson County is in Zone 6a with an average last frost of April 21. Plan your Komatsuna planting based on this frost date — see the calendar above for exact timing.
What planting zone is Jackson County, OH?
Jackson County, Ohio is in USDA Hardiness Zone 6a. The average last spring frost is April 21 and first fall frost is October 22.
Plan Your Garden with Confidence
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