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When to plant Beets in Millbrook, IL

In Millbrook, plant Beets in spring between April 6 and April 27, once soil temps hold above 50°F. Millbrook's last frost averages April 20, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between August 8 and August 22 — roughly 50–70 days before the first frost on October 17.

When to Plant Beets in Millbrook, IL

Beets

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.

Millbrook, Illinois is in USDA Zone 5b. The average last spring frost is April 20 and the first fall frost is October 17, giving you a growing season of approximately 180 days.

At an elevation of 708 feet, Kendall County receives approximately 38.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Beets during the growing season.

Millbrook, IL (Zone 5b) Moderate season
180 days
Last Spring Frost April 20
180 growing days
First Fall Frost October 17

Millbrook Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-6.8

Drainage

Well Drained

Monthly Watering Guide for Beets

Beets needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Beets Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 3" 0" ❄️ Dormant
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.6" 0" ✅ Rainfall sufficient
Jun 4.3" 5.3" 0" ✅ Rainfall sufficient
Jul 4.3" 4.1" 0.2" 💧 Light watering
Aug 4.3" 3.4" 0.9" 💧 Light watering
Sep 4.3" 3" 1.3" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 2.9" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Kendall County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Beets Planting Timeline — Millbrook, IL

Beets Planting Calendar

Activity When Date Range
Direct Sow April 6 Apr 6 – Apr 27
Harvest June 1 Jun 1 – Jun 29
Fall Sowing August 8 Aug 8 – Aug 22

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

180 days in Kendall County

Growing Tips for Millbrook

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 Millbrook, IL?

In Millbrook, IL, plant Beets after the last frost (around April 20) and before the first frost (around October 17). Best results when soil holds above 50°F.

What growing zone is Millbrook, IL for Beets?

Millbrook sits in USDA Zone 5b. Beets grows reliably in zones 2a through 11b, so it's a good fit here.

Can Beets grow in Millbrook's climate?

Yes — Beets grows well in Millbrook's temperate climate. Millbrook averages a 180-day frost-free season, with last frost around April 20 and first frost around October 17.

🌱

Your Kendall County Garden Planner — Free

A 22-page printable planner built for Kendall County (Zone 5b). 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 Kendall County, IL. Local conditions may vary. Last updated: July 2026.