When to Plant Turnip in Robertson County, TN
Turnips are a fast-growing cool-season root vegetable with edible roots and greens. Baby turnips are sweet and tender while mature ones are more pungent.
Robertson County, Tennessee is in USDA Zone 6b. The average last spring frost is April 6 and the first fall frost is October 29, giving you a growing season of approximately 206 days.
At an elevation of 3,620 feet, Robertson County receives approximately 42.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Turnip during the growing season.
Robertson County Soil Profile
Soil Type
Silt Loam
Soil pH
5.3-7
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
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Turnip Planting Timeline — Robertson County, TN
Turnip Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 23 | Mar 23 – Apr 13 |
| Fall Sowing | August 20 | Aug 20 – Sep 3 |
| Harvest | May 4 | May 4 – Jun 8 |
Plant 0.5" deep · 4" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Direct Sow |
| April | Direct Sow |
| May | Harvest |
| June | Harvest |
| July | — |
| August | Fall Sowing |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
40–60 days
Soil pH
6 – 7
USDA Zone
Zone 6b
Growing Season
206 days
Growing Tips for Robertson County
Direct sow in early spring or late summer. Harvest when roots are 2-3 inches in diameter for best flavor. Both the roots and the greens are nutritious and edible.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Turnip in Other Locations
Frequently Asked Questions
When should I plant Turnip in Robertson County, TN?
Robertson County is in Zone 6b with an average last frost of April 6. Plan your Turnip planting based on this frost date — see the calendar above for exact timing.
What planting zone is Robertson County, TN?
Robertson County, Tennessee is in USDA Hardiness Zone 6b. The average last spring frost is April 6 and first fall frost is October 29.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Robertson County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.