When to Plant Mitsuba in Pittsburg County, OK
Mitsuba (Japanese parsley) is a shade-loving herb with trefoil leaves and a mild celery-parsley flavor. It is essential in Japanese cuisine for soups, salads, and garnishes.
Pittsburg County, Oklahoma is in USDA Zone 7a. The average last spring frost is April 4 and the first fall frost is November 1, giving you a growing season of approximately 211 days.
At an elevation of 620 feet, Pittsburg County receives approximately 32.6 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Mitsuba during the growing season.
Pittsburg County Soil Profile
Soil Type
Loam
Soil pH
6.6-7.2
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
Mitsuba Planting Timeline — Pittsburg County, OK
Mitsuba Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 28 | Feb 28 – Mar 14 |
| Transplant Outdoors | March 28 | Mar 28 – Apr 11 |
| Direct Sow | March 21 | Mar 21 – Apr 11 |
| Fall Sowing | August 23 | Aug 23 – Sep 6 |
| Harvest | May 23 | May 23 – Jul 18 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Partial Shade (3-6 hours)
Water
Moderate — regular watering
Days to Maturity
50–70 days
Soil pH
6 – 7
USDA Zone
Zone 7a
Growing Season
211 days
Growing Tips for Pittsburg County
Direct sow or start indoors in partial shade. Mitsuba prefers cool, moist conditions. Harvest outer stems as needed. Self-sows readily in shaded garden areas.
Companion Planting
Good Companions
Level Up Your Garden
Mitsuba in Other Locations
Frequently Asked Questions
When should I plant Mitsuba in Pittsburg County, OK?
Pittsburg County is in Zone 7a with an average last frost of April 4. Plan your Mitsuba planting based on this frost date — see the calendar above for exact timing.
What planting zone is Pittsburg County, OK?
Pittsburg County, Oklahoma is in USDA Hardiness Zone 7a. The average last spring frost is April 4 and first fall frost is November 1.
Plan Your Garden with Confidence
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