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When to Plant Beets in Fentress County, TN

Beets are a dual-purpose root vegetable with edible roots and nutritious greens. They come in red, golden, and striped varieties and are rich in vitamins and minerals.

Fentress County, Tennessee is in USDA Zone 6b. The average last spring frost is April 15 and the first fall frost is October 23, giving you a growing season of approximately 191 days.

At an elevation of 3,108 feet, Fentress County receives approximately 46.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Beets during the growing season.

Fentress County, TN (Zone 6b) Moderate season
191 days
Last Spring Frost April 15
191 growing days
First Fall Frost October 23

Fentress County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (108 days to spare)
Transplant: Apr 8 🍅 Harvest: Jun 3 – Jul 1
Recommended (50%) ✓ Fits season (107 days to spare)
Transplant: Apr 15 🍅 Harvest: Jun 10 – Jul 8
Safe Start (90%) ✓ Fits season (104 days to spare)
Transplant: Apr 29 🍅 Harvest: Jun 24 – Jul 22

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 Fentress County

How your county's soil matches Beets's growing requirements.

Soil pH

Your soil pH (5.4โ€“6.9) overlaps with Beets's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

The silt loam soil in Fentress County is excellent for Beets โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.9%). Annual compost additions will help Beets.

How to Plant Beets

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Beets

4
successive plantings in your 191-day season

Sow every 5.7 weeks. Last sowing by Aug 14 to harvest before frost.

For a dedicated fall crop, sow by Aug 14.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Beets

Beets needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Beets Needs Rainfall You Supplement Action
Jan โ€” 3.8" 0" โ„๏ธ Dormant
Feb โ€” 3.4" 0" โ„๏ธ Dormant
Mar โ€” 4.5" 0" โ„๏ธ Dormant
Apr 3.5" 3.8" 0" โœ… Rainfall sufficient
May 3.5" 3.4" 0.1" ๐Ÿ’ง Light watering
Jun 3.5" 3.8" 0" โœ… Rainfall sufficient
Jul 3.5" 4.9" 0" โœ… Rainfall sufficient
Aug 3.5" 4.3" 0" โœ… Rainfall sufficient
Sep 3.5" 3.3" 0.2" ๐Ÿ’ง Light watering
Oct 3.5" 3.4" 0.1" ๐Ÿ’ง Light watering
Nov โ€” 4" 0" โ„๏ธ Dormant
Dec โ€” 3.9" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Fentress County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Beets 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" โ€” every day above 50ยฐF 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.

Beets needs ~915 GDD — county provides 2,912 GDD Excellent fit

Beets Planting Timeline โ€” Fentress County, TN

Beets Planting Calendar

Activity When Date Range
Direct Sow April 1 Apr 1 โ€“ Apr 22
Harvest May 27 May 27 โ€“ Jun 24
Fall Sowing August 14 Aug 14 โ€“ Aug 28

Plant 0.5" deep ยท 4" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Direct Sow
May Harvest
June Harvest
July โ€”
August Fall Sowing
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.8"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

50โ€“70 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 6b

๐Ÿ“† Growing Season

191 days in Fentress County

Growing Tips for Beets in Fentress County

Direct sow Beets outdoors after April 15 in Fentress County when soil has warmed and frost danger has passed.

General growing tips

Soak seeds overnight before planting to improve germination. Thin seedlings to 3-4 inches apart. Harvest roots when 1.5-3 inches in diameter for best texture.

Companion Planting

Good Companions

Avoid Planting Near

  • Pole Beans
  • Mustard Greens

Check more plant combinations with our Companion Planting Checker →

๐ŸŒพ Save Your Own Beets Seeds
Life Cycle Biennial
Pollination Wind Pollinated
How to Collect Replant roots for 2nd-year seeds. Rub stalks to free clusters.
Storage Store airtight; viable 6 years at 35ยฐF, under 50% humidity.

Isolate 1/2 mile from Swiss chard โ€” same species, they will cross.

Frequently Asked Questions

When should I plant Beets in Fentress County, TN?

Fentress County is in Zone 6b with an average last frost of April 15. Plan your Beets planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Fentress County, TN?

Fentress County, Tennessee is in USDA Hardiness Zone 6b. The average last spring frost is April 15 and first fall frost is October 23.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Fentress 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.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Fentress County, TN. Local conditions may vary. Last updated: April 2026.