When to Plant Rhubarb in Coffee County, TN
Rhubarb is a long-lived perennial vegetable grown for its tart, colorful stalks. Only the stalks are edible as the leaves contain toxic oxalic acid.
Coffee County, Tennessee is in USDA Zone 7a. The average last spring frost is April 11 and the first fall frost is October 23, giving you a growing season of approximately 195 days.
At an elevation of 1,710 feet, Coffee County receives approximately 45.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Rhubarb during the growing season.
Coffee County Soil Profile
Soil Type
Silt Loam
Soil pH
5.6-6.8
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.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Rhubarb Planting Timeline — Coffee County, TN
Rhubarb Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 2 | May 2 – May 16 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
365–730 days
Soil pH
6 – 7
USDA Zone
Zone 7a
Growing Season
195 days
Growing Tips for Coffee County
Plant crowns in early spring in rich, well-drained soil. Do not harvest stalks the first year. Pull (do not cut) stalks at harvest to avoid introducing rot.
Companion Planting
Good Companions
Level Up Your Garden
Rhubarb in Other Locations
Frequently Asked Questions
When should I plant Rhubarb in Coffee County, TN?
Coffee County is in Zone 7a with an average last frost of April 11. Plan your Rhubarb planting based on this frost date — see the calendar above for exact timing.
What planting zone is Coffee County, TN?
Coffee County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is April 11 and first fall frost is October 23.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Coffee County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.
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