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When to Plant Cress in Adams County, MS

Adams County, Mississippi Zone 8b May

Top priorities for Adams County, Mississippi gardeners in May

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Adams County, Mississippi.

Avg. last frost March 10
Avg. first frost November 12
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs

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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.

Adams County, Mississippi is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 12, giving you a growing season of approximately 247 days.

At an elevation of 458 feet, Adams County receives approximately 54.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Cress may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Cress, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cress root diseases.

Adams County, MS (Zone 8b) Long season
247 days
Last Spring Frost March 10
247 growing days
First Fall Frost November 12
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Adams County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (206 days to spare)
Start indoors: Jan 29 Transplant: Mar 5 🍅 Harvest: Mar 19 – Apr 9
Recommended (50%) ✓ Fits season (212 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: Mar 24 – Apr 14
Safe Start (90%) ✓ Fits season (201 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: Apr 22 – May 13

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 Adams County

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

Soil pH

Your soil pH (5.6–6.2) is more acidic than Cress prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Cress.

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

22
successive plantings in your 247-day season

Sow every 1.6 weeks. Last sowing by Oct 22 to harvest before frost.

For a dedicated fall crop, sow by Sep 03.

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 176 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 4.5" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 4.3" 4.8" 0" ✅ Rainfall sufficient
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 4.7" 0" ✅ Rainfall sufficient
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Adams 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 ~398 GDD — county provides 5,619 GDD Excellent fit

Cress Planting Timeline — Adams County, MS

Cress Planting Calendar

Activity When Date Range
Start Indoors February 3 Feb 3 – Feb 17
Transplant Outdoors March 10 Mar 10 – Mar 24
Direct Sow February 24 Feb 24 – Mar 17
Harvest March 24 Mar 24 – Apr 14
Fall Sowing September 3 Sep 3 – Sep 17

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

14–21 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

247 days in Adams County

Growing Tips for Cress in Adams County

Direct sow Cress outdoors after March 10 in Adams County when soil has warmed and frost danger has passed.

With Adams County's clay soil (30% clay), work in 3-4 inches of compost before planting Cress. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Adams County, provide afternoon shade for Cress and water deeply in the morning.

Your generous 247.0-day season in Adams 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 Adams County, MS?

Adams County is in Zone 8b with an average last frost of March 10. Plan your Cress planting based on this frost date — see the calendar above for exact timing.

What planting zone is Adams County, MS?

Adams County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 12.

🌱

Your Adams County Garden Planner — Free

A 24-page printable planner built for Adams County (Zone 8b). 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 Adams County, MS. 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.