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When to Plant Chicory in Fossil, OR

Wheeler County, Oregon Zone 7a June

This month in Wheeler County, Oregon

Your Wheeler County, Oregon garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost May 23
Avg. first frost September 23
Soil temp (4") 65°F
Watering Critical
Pest pressure High
Daylight 15.4 hrs
  1. Start chicory under lights

    Label every cell. You will absolutely forget which is which otherwise.

Coming up in July — start thinking about
  • First harvests: chicory
  • Fall sowing: 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.

Fossil, Oregon is in USDA Zone 7a. The average last spring frost is May 23 and the first fall frost is September 23, giving you a growing season of approximately 123 days.

At an elevation of 2,175 feet, Wheeler County receives approximately 22.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Chicory to ensure they mature before fall.

Fossil, OR (Zone 7a) Short season
123 days
Last Spring Frost May 23
123 growing days
First Fall Frost September 23

Fossil Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Chicory Planting Risk Windows

Early Start (70% safe) ✓ Fits season (12 days to spare)
Start indoors: Apr 11 Transplant: May 16 🍅 Harvest: Jul 18 – Aug 29
Recommended (50%) ✓ Fits season (18 days to spare)
Start indoors: Apr 18 Transplant: May 23 🍅 Harvest: Jul 25 – Sep 5
Safe Start (90%) ✓ Fits season (20 days to spare)
Start indoors: May 15 Transplant: Jun 19 🍅 Harvest: Aug 21 – Oct 2

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 Fossil

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

Soil pH

Your soil pH (5.2–6.3) overlaps with Chicory's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (5.7%) — Chicory will thrive.

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

2
successive plantings in your 123-day season

Sow every 6.9 weeks. Last sowing by Jun 30 to harvest before frost.

For a dedicated fall crop, sow by Jul 15.

Chicory Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 242 gal / 100 sq ft

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 3" 0" ❄️ Dormant
Feb 2.3" 0" ❄️ Dormant
Mar 2.6" 0" ❄️ Dormant
Apr 1.6" 0" ❄️ Dormant
May 4.3" 1.5" 2.8" 🚿 Regular watering
Jun 4.3" 1" 3.3" 🚿 Regular watering
Jul 4.3" 0.4" 3.9" 🚿 Regular watering
Aug 4.3" 0.4" 3.9" 🚿 Regular watering
Sep 4.3" 0.8" 3.5" 🚿 Regular watering
Oct 2.1" 0" ❄️ Dormant
Nov 3.3" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Wheeler 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 ~888 GDD — county provides 1,506 GDD Excellent fit

Chicory Planting Timeline — Fossil, OR

Chicory Planting Calendar

Activity When Date Range
Start Indoors April 18 Apr 18 – May 2
Transplant Outdoors May 23 May 23 – Jun 6
Direct Sow May 9 May 9 – May 30
Harvest July 25 Jul 25 – Sep 5
Fall Sowing July 15 Jul 15 – Jul 29

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

60–85 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

123 days in Wheeler County

Growing Tips for Chicory in Fossil

Direct sow Chicory outdoors after May 23 in Wheeler 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.

Wheeler County receives only 23" of rain annually. Chicory needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

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 →

🌱

Your Wheeler County Garden Planner — Free

A 22-page printable planner built for Wheeler 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.

Instant PDF download. No spam, unsubscribe any time.

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