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When to Plant Cress in Ballard County, KY

Ballard County, Kentucky Zone 7a May

Your May game plan for Ballard County, Kentucky

A quick May briefing for Ballard County, Kentucky gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 6
Avg. first frost October 26
Soil temp (4") 57°F
Watering Low
Pest pressure Low
Daylight 14 hrs
  1. Begin indoor sowing: cress

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

  2. Pick cress

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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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.

Ballard County, Kentucky is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is October 26, giving you a growing season of approximately 203 days.

At an elevation of 2,452 feet, Ballard County receives approximately 54.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Cress during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cress root diseases.

Ballard County, KY (Zone 7a) Long season
203 days
Last Spring Frost April 6
203 growing days
First Fall Frost October 26
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Ballard County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (170 days to spare)
Start indoors: Feb 22 Transplant: Mar 29 🍅 Harvest: Apr 12 – May 3
Recommended (50%) ✓ Fits season (168 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: Apr 20 – May 11
Safe Start (90%) ✓ Fits season (164 days to spare)
Start indoors: Mar 16 Transplant: Apr 20 🍅 Harvest: May 4 – May 25

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 Ballard County

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

Soil pH

Your soil pH (5.4–6.7) overlaps with Cress's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.1%). 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

18
successive plantings in your 203-day season

Sow every 1.6 weeks. Last sowing by Oct 05 to harvest before frost.

For a dedicated fall crop, sow by Aug 17.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 4.3" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 5.3" 0" ❄️ Dormant
Apr 4.3" 4.5" 0" ✅ Rainfall sufficient
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 4.8" 0" ✅ Rainfall sufficient
Jul 4.3" 5.3" 0" ✅ Rainfall sufficient
Aug 4.3" 5.7" 0" ✅ Rainfall sufficient
Sep 4.3" 4.7" 0" ✅ Rainfall sufficient
Oct 4.3" 3.9" 0.4" 💧 Light watering
Nov 4.7" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Ballard 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 ~280 GDD — county provides 3,248 GDD Excellent fit

Cress Planting Timeline — Ballard County, KY

Cress Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors April 6 Apr 6 – Apr 20
Direct Sow March 23 Mar 23 – Apr 13
Harvest April 20 Apr 20 – May 11
Fall Sowing August 17 Aug 17 – Aug 31

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
October
November
December
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Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

14–21 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

203 days in Ballard County

Growing Tips for Cress in Ballard County

Direct sow Cress outdoors after April 06 in Ballard County when soil has warmed and frost danger has passed.

Your generous 203.0-day season in Ballard 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 Ballard County, KY?

Ballard County is in Zone 7a with an average last frost of April 6. Plan your Cress planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ballard County, KY?

Ballard County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 6 and first fall frost is October 26.

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Your Ballard County Garden Planner — Free

A 24-page printable planner built for Ballard 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.

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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 Ballard County, KY. 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.