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When to plant Cress in Wabash County, IL

Wabash County's climate puts the Cress spring window between March 26 and April 16. time plantings around the expected last-frost window for best survival. A second sowing from August 19 to September 2 extends the harvest into fall.

When to Plant Cress in Wabash County, IL

Wabash County, Illinois Zone 6b July

Wabash County, Illinois gardeners: here's your July plan

Your garden in Wabash County, Illinois is working on a schedule, even when you're not. Here's where you should be this July.

Avg. last frost April 9
Avg. first frost October 28
Soil temp (4") 83°F
Watering Low
Pest pressure High
Daylight 14.4 hrs
Looking ahead to August
  • Fall sowing: cress

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Garden cress is one of the fastest-growing edibles, producing peppery sprouts in as little as two weeks. It is excellent for microgreens and garnishes.

Wabash County, Illinois is in USDA Zone 6b. The average last spring frost is April 9 and the first fall frost is October 28, giving you a growing season of approximately 202 days.

At an elevation of 880 feet, Wabash County receives approximately 32.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Cress during the growing season.

Wabash County, IL (Zone 6b) Long season
202 days
Last Spring Frost April 9
202 growing days
First Fall Frost October 28

Wabash County Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-7.3

Drainage

Well Drained

Cress Planting Risk Windows

Early Start (70% safe) ✓ Fits season (167 days to spare)
Start indoors: Feb 26 Transplant: Apr 2 🍅 Harvest: Apr 16 – May 7
Recommended (50%) ✓ Fits season (167 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Apr 23 – May 14
Safe Start (90%) ✓ Fits season (173 days to spare)
Start indoors: Mar 18 Transplant: Apr 22 🍅 Harvest: May 6 – May 27

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 Wabash County

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

Soil pH

Your soil pH (5.9–7.3) overlaps with Cress's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (4.8%) — Cress will thrive.

How to Plant Cress

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

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

Succession Planting Cress

18
successive plantings in your 202-day season

Sow every 1.6 weeks. Last sowing by Oct 07 to harvest before frost.

For a dedicated fall crop, sow by Aug 19.

Cress Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 568 gal / 100 sq ft

Monthly Watering Guide for Cress

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

Month Cress Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.5" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 4.3" 3.1" 1.2" 💧 Light watering
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 4.1" 0.2" 💧 Light watering
Jul 4.3" 4.1" 0.2" 💧 Light watering
Aug 4.3" 3.2" 1.1" 💧 Light watering
Sep 4.3" 2.7" 1.6" 💧 Light watering
Oct 4.3" 2.5" 1.8" 💧 Light watering
Nov 2.2" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

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

Cress 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.

Cress needs ~319 GDD — county provides 3,686 GDD Excellent fit

Cress Planting Timeline — Wabash County, IL

Cress Planting Calendar

Activity When Date Range
Start Indoors March 5 Mar 5 – Mar 19
Transplant Outdoors April 9 Apr 9 – Apr 23
Direct Sow March 26 Mar 26 – Apr 16
Harvest April 23 Apr 23 – May 14
Fall Sowing August 19 Aug 19 – Sep 2

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

14–21 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

202 days in Wabash County

Growing Tips for Cress in Wabash County

Direct sow Cress outdoors after April 09 in Wabash County when soil has warmed and frost danger has passed.

Your generous 202.0-day season in Wabash County allows multiple plantings of Cress. Sow every 7.0 days for continuous harvest.

Common pests for Cress in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Sow seeds thickly on moist soil or paper towels. Keep moist and harvest when 2-3 inches tall. Succession sow every few days for continuous supply. Grows well indoors year-round.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cress in Wabash County, IL?

Wabash County is in Zone 6b with an average last frost of April 9. Plan your Cress planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wabash County, IL?

Wabash County, Illinois is in USDA Hardiness Zone 6b. The average last spring frost is April 9 and first fall frost is October 28.

When should I plant Cress in Wabash County, IL?

In Wabash County, IL, plant Cress after the last frost (around April 9) and before the first frost (around October 28). Best results when soil holds above 50°F.

What growing zone is Wabash County, IL for Cress?

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

Can Cress grow in Wabash County's climate?

Yes — Cress grows well in Wabash County's temperate climate. Wabash County averages a 202-day frost-free season, with last frost around April 9 and first frost around October 28.

🌱

Your Wabash County Garden Planner — Free

A 22-page printable planner built for Wabash County (Zone 6b). 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 Wabash County, IL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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