When to Plant Cress in Perry County, PA
This month in Perry County, Pennsylvania
If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.
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Start cress indoors
Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.
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Basket week: cress
If you can't use it all right away, check the food-preservation section of your planner.
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.
Perry County, Pennsylvania is in USDA Zone 7a. The average last spring frost is April 24 and the first fall frost is October 22, giving you a growing season of approximately 181 days.
At an elevation of 693 feet, Perry County receives approximately 40.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Cress during the growing season.
Perry County Soil Profile
Soil Type
Silt Loam
Soil pH
5-6.3
Drainage
Well Drained
Plant Planting Risk Windows
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 Perry County
How your county's soil matches Cress's growing requirements.
Soil pH
Your soil pH (5.0–6.3) is more acidic than Cress prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Perry County is excellent for Cress — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Cress.
Organic Matter
Organic matter is moderate (3.0%). Annual compost additions will help Cress.
How to Plant Cress
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Cress
Sow every 1.6 weeks. Last sowing by Oct 01 to harvest before frost.
For a dedicated fall crop, sow by Aug 13.
Plant Water Budget
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 | — | 2.9" | 0" | ❄️ Dormant |
| Feb | — | 3" | 0" | ❄️ Dormant |
| Mar | — | 3.7" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| May | 4.3" | 3.3" | 1" | 💧 Light watering |
| Jun | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Jul | 4.3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Sep | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| Oct | 4.3" | 2.8" | 1.5" | 💧 Light watering |
| Nov | — | 2.6" | 0" | ❄️ Dormant |
| Dec | — | 3.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Perry 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 Planting Timeline — Perry County, PA
Cress Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 20 | Mar 20 – Apr 3 |
| Transplant Outdoors | April 24 | Apr 24 – May 8 |
| Direct Sow | April 10 | Apr 10 – May 1 |
| Harvest | May 8 | May 8 – May 29 |
| Fall Sowing | August 13 | Aug 13 – Aug 27 |
Plant 0.5" deep · 2" apart · Rows 6" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow Harvest |
| June | — |
| July | — |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
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: too_acidic
🗺️ USDA Zone
Zone 7a
📆 Growing Season
181 days in Perry County
Growing Tips for Cress in Perry County
Direct sow Cress outdoors after April 24 in Perry County when soil has warmed and frost danger has passed.
Your generous 181.0-day season in Perry 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 →
Cress in Other Locations
Frequently Asked Questions
When should I plant Cress in Perry County, PA?
Perry County is in Zone 7a with an average last frost of April 24. Plan your Cress planting based on this frost date — see the calendar above for exact timing.
What planting zone is Perry County, PA?
Perry County, Pennsylvania is in USDA Hardiness Zone 7a. The average last spring frost is April 24 and first fall frost is October 22.
Your Perry County Garden Planner — Free
A 24-page printable planner built for Perry 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.