When to Plant Tatsoi in Montgomery County, MD
Tatsoi is a compact Asian green forming beautiful rosettes of dark, spoon-shaped leaves with a mild mustard flavor. It is extremely cold-hardy and versatile.
Montgomery County, Maryland is in USDA Zone 7a. The average last spring frost is April 16 and the first fall frost is October 20, giving you a growing season of approximately 187 days.
At an elevation of 661 feet, Montgomery County receives approximately 41.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Tatsoi during the growing season.
Montgomery County Soil Profile
Soil Type
Silt Loam
Soil pH
5.4-6.7
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
Tatsoi Planting Timeline — Montgomery County, MD
Tatsoi Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 12 | Mar 12 – Mar 26 |
| Transplant Outdoors | April 16 | Apr 16 – Apr 30 |
| Direct Sow | April 2 | Apr 2 – Apr 23 |
| Fall Sowing | August 11 | Aug 11 – Aug 25 |
| Harvest | May 21 | May 21 – Jun 25 |
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 | Harvest |
| June | Harvest |
| July | — |
| August | Fall Sowing |
| September | — |
| 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 7a
Growing Season
187 days
Growing Tips for Montgomery County
Direct sow in spring or fall. Tatsoi tolerates frost down to 15F. Harvest outer leaves or cut whole rosettes. Excellent in salads, stir-fries, or lightly wilted.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Tatsoi in Other Locations
Frequently Asked Questions
When should I plant Tatsoi in Montgomery County, MD?
Montgomery County is in Zone 7a with an average last frost of April 16. Plan your Tatsoi planting based on this frost date — see the calendar above for exact timing.
What planting zone is Montgomery County, MD?
Montgomery County, Maryland is in USDA Hardiness Zone 7a. The average last spring frost is April 16 and first fall frost is October 20.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Montgomery County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.
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