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When to Plant Cress in Johnson County, AR

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.

Johnson County, Arkansas is in USDA Zone 7a. The average last spring frost is March 26 and the first fall frost is November 3, giving you a growing season of approximately 222 days.

At an elevation of 1,347 feet, Johnson County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91ยฐF, providing good warmth for Cress during the growing season.

Johnson County, AR (Zone 7a) Long season
222 days
Last Spring Frost March 26
222 growing days
First Fall Frost November 3

Johnson County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (186 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: Apr 4 – Apr 25
Recommended (50%) ✓ Fits season (187 days to spare)
Start indoors: Feb 19 Transplant: Mar 26 🍅 Harvest: Apr 9 – Apr 30
Safe Start (90%) ✓ Fits season (194 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Apr 23 – May 14

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 118 gal / 100 sq ft
Cress needs ~319 GDD — county provides 4,051 GDD Excellent fit

Cress Planting Timeline โ€” Johnson County, AR

Cress Planting Calendar

Activity When Date Range
Start Indoors February 19 Feb 19 โ€“ Mar 5
Transplant Outdoors March 26 Mar 26 โ€“ Apr 9
Direct Sow March 12 Mar 12 โ€“ Apr 2
Fall Sowing August 25 Aug 25 โ€“ Sep 8
Harvest April 9 Apr 9 โ€“ Apr 30

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

14โ€“21 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7a

Growing Season

222 days

Growing Tips for Johnson County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Cress in Johnson County, AR?

Johnson County is in Zone 7a with an average last frost of March 26. Plan your Cress planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Johnson County, AR?

Johnson County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is March 26 and first fall frost is November 3.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Johnson County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

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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 Johnson County, AR. Local conditions may vary. Last updated: April 2026.