When to plant Celeriac in Benton County, IN
Benton County gardeners should plant Celeriac between April 8 and April 29 in spring. With Benton County's Zone 6a climate (last frost April 22), Celeriac needs 100–120 days to mature — plant by June 15 for a full harvest. A second sowing from August 4 to August 18 extends the harvest into fall.
When to Plant Celeriac in Benton County, IN
Your June game plan for Benton County, Indiana
Each item below is timed to Benton County, Indiana's frost dates and soil temperatures. Skip nothing, stress about nothing.
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.
Benton County, Indiana is in USDA Zone 6a. The average last spring frost is April 22 and the first fall frost is October 13, giving you a growing season of approximately 174 days.
At an elevation of 1,298 feet, Benton County receives approximately 39 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.
Benton County Soil Profile
Soil Type
Silt Loam
Soil pH
6.3-7
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 Benton County
How your county's soil matches Celeriac's growing requirements.
Soil pH
Your soil pH (6.3–7.0) is within Celeriac's preferred range (6.0–7.0).
Soil Texture
The silt loam soil in Benton County is excellent for Celeriac — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is excellent (4.7%) — Celeriac will thrive.
How to Plant Celeriac
Fall planting: Sow 10 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 | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 1.9" | 0" | ❄️ Dormant |
| Mar | — | 2.3" | 0" | ❄️ Dormant |
| Apr | 3.9" | 3.9" | 0" | ✅ Rainfall sufficient |
| May | 3.9" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 5.3" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 4.7" | 0" | ✅ Rainfall sufficient |
| Aug | 3.9" | 3.4" | 0.5" | 💧 Light watering |
| Sep | 3.9" | 2.9" | 1" | 💧 Light watering |
| Oct | 3.9" | 3.1" | 0.8" | 💧 Light watering |
| Nov | — | 2.8" | 0" | ❄️ Dormant |
| Dec | — | 2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Benton 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 — Benton County, IN
Celeriac Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 18 | Mar 18 – Apr 1 |
| Transplant Outdoors | April 22 | Apr 22 – May 6 |
| Direct Sow | April 8 | Apr 8 – Apr 29 |
| Harvest | August 5 | Aug 5 – Sep 9 |
| Fall Sowing | August 4 | Aug 4 – Aug 18 |
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 |
| 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
174 days in Benton County
Growing Tips for Celeriac in Benton County
Direct sow Celeriac outdoors after April 22 in Benton 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 Benton County, IN?
Benton County is in Zone 6a with an average last frost of April 22. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.
What planting zone is Benton County, IN?
Benton County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 22 and first fall frost is October 13.
When should I plant Celeriac in Benton County, IN?
In Benton County, IN, plant Celeriac after the last frost (around April 22) and before the first frost (around October 13). Best results when soil holds above 50°F.
What growing zone is Benton County, IN for Celeriac?
Benton County sits in USDA Zone 6a. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.
Can Celeriac grow in Benton County's climate?
Yes — Celeriac grows well in Benton County's temperate climate. Benton County averages a 174-day frost-free season, with last frost around April 22 and first frost around October 13.
Your Benton County Garden Planner — Free
A 22-page printable planner built for Benton 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.