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When to plant Chicory in Oneida County, ID

Oneida County gardeners should plant Chicory between May 9 and May 30 in spring. With Oneida County's Zone 6a climate (last frost May 23), Chicory needs 60–85 days to mature — plant by June 27 for a full harvest. A second sowing from July 12 to July 26 extends the harvest into fall.

When to Plant Chicory in Oneida County, ID

Oneida County, Idaho Zone 6a August

August in Oneida County, Idaho — your action list

Each item below is timed to Oneida County, Idaho's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 23
Avg. first frost September 20
Soil temp (4") 53°F
Watering High
Pest pressure High
Daylight 13.7 hrs
  1. Collect chicory at their peak

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Before September arrives, get these ready
  • 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.

Oneida County, Idaho is in USDA Zone 6a. The average last spring frost is May 23 and the first fall frost is September 20, giving you a growing season of approximately 120 days.

At an elevation of 8,042 feet, Oneida County receives approximately 18.4 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Chicory during the growing season. With low rainfall, drip irrigation is essential for growing Chicory successfully. Mulch heavily to conserve soil moisture.

Oneida County, ID (Zone 6a) Short season
120 days
Last Spring Frost May 23
120 growing days
First Fall Frost September 20

Oneida County Soil Profile

Soil Type

Loam

Soil pH

6.3-8.2

Drainage

Well Drained

Chicory Planting Risk Windows

Early Start (70% safe) ✓ Fits season (17 days to spare)
Start indoors: Apr 7 Transplant: May 12 🍅 Harvest: Jul 14 – Aug 25
Recommended (50%) ✓ Fits season (15 days to spare)
Start indoors: Apr 18 Transplant: May 23 🍅 Harvest: Jul 25 – Sep 5
Safe Start (90%) ✓ Fits season (13 days to spare)
Start indoors: May 11 Transplant: Jun 15 🍅 Harvest: Aug 17 – Sep 28

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 Oneida County

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

Soil pH

Your soil pH (6.3–8.2) is more alkaline than Chicory prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Chicory.

Organic Matter

Organic matter is moderate (2.6%). 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

2
successive plantings in your 120-day season

Sow every 6.9 weeks. Last sowing by Jun 27 to harvest before frost.

For a dedicated fall crop, sow by Jul 12.

Chicory Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 841 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — 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 1.2" 0" ❄️ Dormant
Feb 1" 0" ❄️ Dormant
Mar 1.8" 0" ❄️ Dormant
Apr 1.8" 0" ❄️ Dormant
May 4.3" 2.1" 2.2" 🚿 Regular watering
Jun 4.3" 1.1" 3.2" 🚿 Regular watering
Jul 4.3" 1.8" 2.5" 🚿 Regular watering
Aug 4.3" 2" 2.3" 🚿 Regular watering
Sep 4.3" 1.7" 2.6" 🚿 Regular watering
Oct 1.7" 0" ❄️ Dormant
Nov 1.3" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Oneida 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 ~997 GDD — county provides 1,650 GDD Excellent fit

Chicory Planting Timeline — Oneida County, ID

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 12 Jul 12 – Jul 26

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 · 2-3 times/week

📅 Days to Maturity

60–85 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6a

📆 Growing Season

120 days in Oneida County

Growing Tips for Chicory in Oneida County

Direct sow Chicory outdoors after May 23 in Oneida 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.

Oneida County receives only 18" 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 →

Frequently Asked Questions

When should I plant Chicory in Oneida County, ID?

Oneida County is in Zone 6a with an average last frost of May 23. Plan your Chicory planting based on this frost date — see the calendar above for exact timing.

What planting zone is Oneida County, ID?

Oneida County, Idaho is in USDA Hardiness Zone 6a. The average last spring frost is May 23 and first fall frost is September 20.

When should I plant Chicory in Oneida County, ID?

In Oneida County, ID, plant Chicory after the last frost (around May 23) and before the first frost (around September 20). Best results when soil holds above 50°F.

What growing zone is Oneida County, ID for Chicory?

Oneida County sits in USDA Zone 6a. Chicory grows reliably in zones 3a through 10b, so it's a good fit here.

Can Chicory grow in Oneida County's climate?

Yes — Chicory grows well in Oneida County's temperate climate. Oneida County averages a 120-day frost-free season, with last frost around May 23 and first frost around September 20.

🌱

Your Oneida County Garden Planner — Free

A 22-page printable planner built for Oneida 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 Oneida County, ID. Local conditions may vary. Last updated: August 2026.

Sources & credits

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