When to Plant Celery in Cottonwood County, MN
Your May gardening checklist
Here's what deserves your attention in Cottonwood County, Minnesota this month. Everything below is tailored to Zone 5a and timed around your local frost dates.
Before June arrives, get these ready
- Starting indoors: celery
Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.
Cottonwood County, Minnesota is in USDA Zone 5a. The average last spring frost is April 29 and the first fall frost is October 8, giving you a growing season of approximately 162 days.
At an elevation of 1,066 feet, Cottonwood County receives approximately 32.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Celery to ensure they mature before fall.
Cottonwood County Soil Profile
Soil Type
Silt Loam
Soil pH
6-7
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 Cottonwood County
How your county's soil matches Celery's growing requirements.
Soil pH
Your soil pH (6.0–7.0) is within Celery's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Cottonwood County is excellent for Celery — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.2%) — Celery will thrive.
How to Plant Celery
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Celery
Sow every 9.1 weeks. Last sowing by Jun 10 to harvest before frost.
For a dedicated fall crop, sow by Jul 30.
Plant Water Budget
Monthly Watering Guide for Celery
Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.
| Month | Celery Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.4" | 0" | ❄️ Dormant |
| Feb | — | 1.4" | 0" | ❄️ Dormant |
| Mar | — | 2" | 0" | ❄️ Dormant |
| Apr | 5.6" | 3.5" | 2.1" | 💧 Light watering |
| May | 5.6" | 4" | 1.6" | 💧 Light watering |
| Jun | 5.6" | 3.6" | 2" | 💧 Light watering |
| Jul | 5.6" | 4.1" | 1.5" | 💧 Light watering |
| Aug | 5.6" | 3.1" | 2.5" | 💧 Light watering |
| Sep | 5.6" | 3.1" | 2.5" | 💧 Light watering |
| Oct | 5.6" | 2.2" | 3.4" | 🚿 Regular watering |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Cottonwood County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Celery 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.
Celery Planting Timeline — Cottonwood County, MN
Celery Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 25 | Mar 25 – Apr 8 |
| Transplant Outdoors | April 29 | Apr 29 – May 13 |
| Direct Sow | April 15 | Apr 15 – May 6 |
| Harvest | July 22 | Jul 22 – Sep 16 |
| Fall Sowing | July 30 | Jul 30 – Aug 13 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Fall Sowing Harvest |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1.3"/week · 1-2 times/week
📅 Days to Maturity
80–120 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 5a
📆 Growing Season
162 days in Cottonwood County
Growing Tips for Celery in Cottonwood County
Direct sow Celery outdoors after April 29 in Cottonwood County when soil has warmed and frost danger has passed.
Common pests for Celery in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 10-12 weeks before last frost. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Celery in Other Locations
Frequently Asked Questions
When should I plant Celery in Cottonwood County, MN?
Cottonwood County is in Zone 5a with an average last frost of April 29. Plan your Celery planting based on this frost date — see the calendar above for exact timing.
What planting zone is Cottonwood County, MN?
Cottonwood County, Minnesota is in USDA Hardiness Zone 5a. The average last spring frost is April 29 and first fall frost is October 8.
Your Cottonwood County Garden Planner — Free
A 24-page printable planner built for Cottonwood County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.