When to Plant Cabbage in Hamilton County, TN
Cabbage is a versatile cool-season crop that forms dense, leafy heads in green, red, or savoy varieties. It is a staple for coleslaw, sauerkraut, and many global cuisines.
Hamilton County, Tennessee is in USDA Zone 7a. The average last spring frost is March 28 and the first fall frost is November 1, giving you a growing season of approximately 218 days.
At an elevation of 3,918 feet, Hamilton County receives approximately 51.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Cabbage during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cabbage root diseases.
Hamilton County Soil Profile
Soil Type
Silt Loam
Soil pH
5.6-6.9
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 Hamilton County
How your county's soil matches Cabbage's growing requirements.
Soil pH
Your soil pH (5.6–6.9) overlaps with Cabbage's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Hamilton County is excellent for Cabbage — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.9%). Annual compost additions will help Cabbage.
How to Plant Cabbage
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Cabbage
Sow every 6.9 weeks. Last sowing by Jul 24 to harvest before frost.
For a dedicated fall crop, sow by Aug 23.
Plant Water Budget
Monthly Watering Guide for Cabbage
Cabbage needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.
| Month | Cabbage Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.3" | 0" | ❄️ Dormant |
| Feb | — | 4.5" | 0" | ❄️ Dormant |
| Mar | 3.9" | 4.8" | 0" | ✅ Rainfall sufficient |
| Apr | 3.9" | 4" | 0" | ✅ Rainfall sufficient |
| May | 3.9" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 4.6" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 5.4" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 5.2" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 3.8" | 0.1" | 💧 Light watering |
| Oct | 3.9" | 2.7" | 1.2" | 💧 Light watering |
| Nov | 3.9" | 4.2" | 0" | ✅ Rainfall sufficient |
| Dec | — | 3.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Hamilton County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Cabbage Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Cabbage Planting Timeline — Hamilton County, TN
Cabbage Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 21 | Feb 21 – Mar 7 |
| Transplant Outdoors | March 28 | Mar 28 – Apr 11 |
| Direct Sow | March 14 | Mar 14 – Apr 4 |
| Harvest | May 30 | May 30 – Jul 25 |
| Fall Sowing | August 23 | Aug 23 – Sep 6 |
Plant 1" deep · 15" apart · Rows 24" 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
Full Sun (6-8+ hours)
💧 Water
0.9"/week · Natural rainfall sufficient
📅 Days to Maturity
60–100 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 7a
📆 Growing Season
218 days in Hamilton County
Growing Tips for Cabbage in Hamilton County
Direct sow Cabbage outdoors after March 28 in Hamilton County when soil has warmed and frost danger has passed.
Summer highs in Hamilton County reach 93°F — grow Cabbage as a spring or fall crop. Use shade cloth if planting in summer.
Common pests for Cabbage in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 4-6 weeks before last frost. Space plants 18-24 inches apart. Keep soil evenly moist to prevent heads from splitting.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Cabbage in Other Locations
Frequently Asked Questions
When should I plant Cabbage in Hamilton County, TN?
Hamilton County is in Zone 7a with an average last frost of March 28. Plan your Cabbage planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hamilton County, TN?
Hamilton County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is March 28 and first fall frost is November 1.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Hamilton County gardeners in Zone 7a 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.