When to plant Celeriac in Goodhue County, MN
Plant Celeriac in Goodhue County from April 20 to May 11 in spring. Goodhue County sits in USDA Zone 4b, with last frost around April 27 and first frost on October 8. A second sowing from July 16 to July 30 extends the harvest into fall.
When to Plant Celeriac in Goodhue County, MN
This month in Goodhue County, Minnesota
We've pulled the most time-sensitive tasks for Goodhue County, Minnesota this June and put them front and centre. Tackle them in order.
-
Start celeriac under lights
Label every cell. You will absolutely forget which is which otherwise.
July prep starts now
- Fall sowing: celeriac
Celeriac is a celery relative grown for its knobby, flavorful root rather than its stalks. It has a rich celery flavor and is excellent roasted, mashed, or in soups.
Goodhue County, Minnesota is in USDA Zone 4b. The average last spring frost is April 27 and the first fall frost is October 8, giving you a growing season of approximately 164 days.
At an elevation of 1,136 feet, Goodhue County receives approximately 34 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Celeriac to ensure they mature before fall.
Goodhue County Soil Profile
Soil Type
Silt Loam
Soil pH
6.3-6.7
Drainage
Well Drained
Celeriac 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 Goodhue County
How your county's soil matches Celeriac's growing requirements.
Soil pH
Your soil pH (6.3–6.7) is within Celeriac's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Goodhue County is excellent for Celeriac — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (3.9%). Annual compost additions will help Celeriac.
How to Plant Celeriac
Fall planting: Sow 12 weeks before your first frost date for a fall harvest.
Celeriac Water Budget
Monthly Watering Guide for Celeriac
Celeriac needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.
| Month | Celeriac Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.6" | 0" | ❄️ Dormant |
| Feb | — | 1.3" | 0" | ❄️ Dormant |
| Mar | — | 2.4" | 0" | ❄️ Dormant |
| Apr | 3.9" | 3.1" | 0.8" | 💧 Light watering |
| May | 3.9" | 4" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 4" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 3.5" | 0.4" | 💧 Light watering |
| Sep | 3.9" | 3" | 0.9" | 💧 Light watering |
| Oct | 3.9" | 2.6" | 1.3" | 💧 Light watering |
| Nov | — | 2.7" | 0" | ❄️ Dormant |
| Dec | — | 1.6" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Goodhue County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Celeriac 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.
Celeriac Planting Timeline — Goodhue County, MN
Celeriac Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 16 | Mar 16 – Mar 30 |
| Transplant Outdoors | April 27 | Apr 27 – May 11 |
| Direct Sow | April 20 | Apr 20 – May 11 |
| Harvest | August 10 | Aug 10 – Sep 14 |
| Fall Sowing | July 16 | Jul 16 – Jul 30 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Fall Sowing |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · Only during dry spells
📅 Days to Maturity
100–120 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 4b
📆 Growing Season
164 days in Goodhue County
Growing Tips for Celeriac in Goodhue County
Direct sow Celeriac outdoors after April 27 in Goodhue County when soil has warmed and frost danger has passed.
Common pests for Celeriac 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. Remove side roots as they develop to encourage a single large bulb. Harvest after a light frost for best flavor.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Celeriac in Other Locations
Frequently Asked Questions
When should I plant Celeriac in Goodhue County, MN?
Goodhue County is in Zone 4b with an average last frost of April 27. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.
What planting zone is Goodhue County, MN?
Goodhue County, Minnesota is in USDA Hardiness Zone 4b. The average last spring frost is April 27 and first fall frost is October 8.
When should I plant Celeriac in Goodhue County, MN?
In Goodhue County, MN, plant Celeriac after the last frost (around April 27) and before the first frost (around October 8). Best results when soil holds above 50°F.
What growing zone is Goodhue County, MN for Celeriac?
Goodhue County sits in USDA Zone 4b. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.
Can Celeriac grow in Goodhue County's climate?
Yes — Celeriac grows well in Goodhue County's temperate climate. Goodhue County averages a 164-day frost-free season, with last frost around April 27 and first frost around October 8.
Your Goodhue County Garden Planner — Free
A 22-page printable planner built for Goodhue County (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.