When to plant Celeriac in Lyons, MI
Plant Celeriac in Lyons, when soil hits 50°F — usually April 17. Continue planting through May 8 for the spring crop. A second sowing from August 1 to August 15 extends the harvest into fall.
When to Plant Celeriac in Lyons, MI
Top priorities for Ionia County, Michigan gardeners in July
July rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Ionia County, Michigan.
A few tasks this July that'll pay off in August
- First harvests: celeriac
- 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.
Lyons, Michigan is in USDA Zone 6a. The average last spring frost is May 1 and the first fall frost is October 10, giving you a growing season of approximately 162 days.
At an elevation of 705 feet, Ionia County receives approximately 35.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Celeriac during the growing season.
Lyons Soil Profile
Soil Type
Silt Loam
Soil pH
6.1-6.8
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 Lyons
How your county's soil matches Celeriac's growing requirements.
Soil pH
Your soil pH (6.1–6.8) is within Celeriac's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Ionia County is excellent for Celeriac — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (5.0%) — Celeriac will thrive.
How to Plant Celeriac
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Celeriac Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
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 | — | 1.5" | 0" | ❄️ Dormant |
| Feb | — | 1.7" | 0" | ❄️ Dormant |
| Mar | — | 2.2" | 0" | ❄️ Dormant |
| Apr | — | 3.1" | 0" | ❄️ Dormant |
| May | 3.9" | 4.6" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 4.3" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 3.8" | 0.1" | 💧 Light watering |
| Sep | 3.9" | 3.2" | 0.7" | 💧 Light watering |
| Oct | 3.9" | 2.8" | 1.1" | 💧 Light watering |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 2.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Ionia 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 — Lyons, MI
Celeriac Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 27 | Mar 27 – Apr 10 |
| Transplant Outdoors | May 1 | May 1 – May 15 |
| Direct Sow | April 17 | Apr 17 – May 8 |
| Harvest | August 14 | Aug 14 – Sep 18 |
| Fall Sowing | August 1 | Aug 1 – Aug 15 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | — |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · Natural rainfall sufficient
📅 Days to Maturity
100–120 days
🧪 Soil pH
Needs 6–7 · Your soil: ideal
🗺️ USDA Zone
Zone 6a
📆 Growing Season
162 days in Ionia County
Growing Tips for Celeriac in Lyons
Direct sow Celeriac outdoors after May 01 in Ionia 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
When should I plant Celeriac in Lyons, MI?
In Lyons, MI, plant Celeriac after the last frost (around May 1) and before the first frost (around October 10). Best results when soil holds above 50°F.
What growing zone is Lyons, MI for Celeriac?
Lyons sits in USDA Zone 6a. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.
Can Celeriac grow in Lyons's climate?
Yes — Celeriac grows well in Lyons's temperate climate. Lyons averages a 162-day frost-free season, with last frost around May 1 and first frost around October 10.
Your Ionia County Garden Planner — Free
A 22-page printable planner built for Ionia County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.