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When to plant Beets in Sumner, MO

Spring Beets in Sumner goes in March 29–April 19, once nighttime temps stop dipping near freezing. A second sowing from August 15 to August 29 extends the harvest into fall.

When to Plant Beets in Sumner, MO

Beets
Chariton County, Missouri Zone 6a August

Top priorities for Chariton County, Missouri gardeners in August

A quick August briefing for Chariton County, Missouri gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 12
Avg. first frost October 24
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Direct-sow beets for cool weather

    Keep young seedlings shaded and moist in summer heat. A row of taller crops works as natural shade.

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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.

Sumner, Missouri is in USDA Zone 6a. The average last spring frost is April 12 and the first fall frost is October 24, giving you a growing season of approximately 195 days.

At an elevation of 1,074 feet, Chariton County receives approximately 34.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Beets during the growing season.

Sumner, MO (Zone 6a) Moderate season
195 days
Last Spring Frost April 12
195 growing days
First Fall Frost October 24

Sumner Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.9

Drainage

Well Drained

Beets Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Transplant: Apr 6 🍅 Harvest: Jun 1 – Jun 29
Recommended (50%) ✓ Fits season (111 days to spare)
Transplant: Apr 12 🍅 Harvest: Jun 7 – Jul 5
Safe Start (90%) ✓ Fits season (109 days to spare)
Transplant: Apr 26 🍅 Harvest: Jun 21 – Jul 19

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 Sumner

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

Soil pH

Your soil pH (5.7–6.9) overlaps with Beets's range (6.0–7.5), though not a perfect match.

Soil Texture

The silt loam soil in Chariton County is excellent for Beets — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). 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 195-day season

Sow every 5.7 weeks. Last sowing by Aug 15 to harvest before frost.

For a dedicated fall crop, sow by Aug 15.

Beets Water Budget

Plant needs
0.8″/week
Rainfall provides
0.7″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 128 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 1.5" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.5" 0" ❄️ Dormant
Apr 3.5" 3.1" 0.4" 💧 Light watering
May 3.5" 4" 0" ✅ Rainfall sufficient
Jun 3.5" 3.8" 0" ✅ Rainfall sufficient
Jul 3.5" 3.6" 0" ✅ Rainfall sufficient
Aug 3.5" 3.9" 0" ✅ Rainfall sufficient
Sep 3.5" 3.2" 0.3" 💧 Light watering
Oct 3.5" 2.9" 0.6" 💧 Light watering
Nov 2.2" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Chariton County). Supplement amounts are based on average rainfall — 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" — 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.

Beets needs ~960 GDD — county provides 3,120 GDD Excellent fit

Beets Planting Timeline — Sumner, MO

Beets Planting Calendar

Activity When Date Range
Direct Sow March 29 Mar 29 – Apr 19
Harvest May 24 May 24 – Jun 21
Fall Sowing August 15 Aug 15 – Aug 29

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

195 days in Chariton County

Growing Tips for Beets in Sumner

Direct sow Beets outdoors after April 12 in Chariton 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 →

🌾 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 35°F, under 50% humidity.

Isolate 1/2 mile from Swiss chard — same species, they will cross.

When should I plant Beets in Sumner, MO?

In Sumner, MO, plant Beets after the last frost (around April 12) and before the first frost (around October 24). Best results when soil holds above 50°F.

What growing zone is Sumner, MO for Beets?

Sumner sits in USDA Zone 6a. Beets grows reliably in zones 2a through 11b, so it's a good fit here.

Can Beets grow in Sumner's climate?

Yes — Beets grows well in Sumner's temperate climate. Sumner averages a 195-day frost-free season, with last frost around April 12 and first frost around October 24.

🌱

Your Chariton County Garden Planner — Free

A 22-page printable planner built for Chariton County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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