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When to Plant Chicory in Oregon County, MO

Oregon County, Missouri Zone 7a May

Your May gardening checklist

May is a pivotal month for Oregon County, Missouri gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 1
Avg. first frost October 27
Soil temp (4") 64°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Start chicory under lights

    You're about 22 weeks out from your last frost — the perfect window to get these germinating indoors.

June will be here before you know it — start on
  • First harvests: chicory

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Chicory is a hardy perennial grown for its bitter leaves and roots. The roots can be roasted as a coffee substitute, and the leaves add complexity to salads.

Oregon County, Missouri is in USDA Zone 7a. The average last spring frost is April 1 and the first fall frost is October 27, giving you a growing season of approximately 209 days.

At an elevation of 1,372 feet, Oregon County receives approximately 30.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Chicory during the growing season.

Oregon County, MO (Zone 7a) Long season
209 days
Last Spring Frost April 1
209 growing days
First Fall Frost October 27
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Oregon County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (106 days to spare)
Start indoors: Feb 19 Transplant: Mar 26 🍅 Harvest: May 28 – Jul 9
Recommended (50%) ✓ Fits season (104 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: Jun 3 – Jul 15
Safe Start (90%) ✓ Fits season (101 days to spare)
Start indoors: Mar 18 Transplant: Apr 22 🍅 Harvest: Jun 24 – Aug 5

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 Oregon County

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

Soil pH

Your soil pH (5.4–6.7) overlaps with Chicory's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Chicory.

How to Plant Chicory

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Succession Planting Chicory

4
successive plantings in your 209-day season

Sow every 6.9 weeks. Last sowing by Aug 03 to harvest before frost.

For a dedicated fall crop, sow by Aug 18.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 855 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Chicory

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

Month Chicory Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 4.3" 2.8" 1.5" 💧 Light watering
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 3.8" 0.5" 💧 Light watering
Jul 4.3" 3.2" 1.1" 💧 Light watering
Aug 4.3" 3.1" 1.2" 💧 Light watering
Sep 4.3" 2.9" 1.4" 💧 Light watering
Oct 4.3" 2.3" 2" 💧 Light watering
Nov 2.1" 0" ❄️ Dormant
Dec 1.6" 0" ❄️ Dormant

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

Chicory 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.

Chicory needs ~1,269 GDD — county provides 3,657 GDD Excellent fit

Chicory Planting Timeline — Oregon County, MO

Chicory Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 – Mar 11
Transplant Outdoors April 1 Apr 1 – Apr 15
Direct Sow March 18 Mar 18 – Apr 8
Harvest June 3 Jun 3 – Jul 15
Fall Sowing August 18 Aug 18 – Sep 1

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May
June Harvest
July Harvest
August Fall Sowing
September Fall Sowing
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

60–85 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

209 days in Oregon County

Growing Tips for Chicory in Oregon County

Direct sow Chicory outdoors after April 01 in Oregon County when soil has warmed and frost danger has passed.

Common pests for Chicory in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow seeds directly in spring. Thin plants to 8-12 inches apart. For forcing, dig roots in fall and replant in a dark, cool area to produce blanched chicons.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chicory in Oregon County, MO?

Oregon County is in Zone 7a with an average last frost of April 1. Plan your Chicory planting based on this frost date — see the calendar above for exact timing.

What planting zone is Oregon County, MO?

Oregon County, Missouri is in USDA Hardiness Zone 7a. The average last spring frost is April 1 and first fall frost is October 27.

🌱

Your Oregon County Garden Planner — Free

A 24-page printable planner built for Oregon County (Zone 7a). 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 Oregon County, MO. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.