When to plant Celeriac in Brown County, IN
In Brown County, plant Celeriac in spring between March 29 and April 19, once soil temps hold above 50°F. Brown County's last frost averages April 12, so time plantings around the expected last-frost window for best survival. For a fall crop, sow between August 11 and August 25 — roughly 100–120 days before the first frost on October 20.
When to Plant Celeriac in Brown County, IN
What to do in August
If you only do a handful of things in the garden this August, make it these. They're sequenced around your zone's frost timing.
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Start harvesting celeriac
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
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Plant your fall garden: celeriac
A row cover ready in the garage extends your harvest by weeks once the nights turn cold.
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.
Brown County, Indiana is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 20, giving you a growing season of approximately 191 days.
At an elevation of 914 feet, Brown County receives approximately 36 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Celeriac during the growing season.
Brown County Soil Profile
Soil Type
Silt Loam
Soil pH
5.9-7.3
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 Brown County
How your county's soil matches Celeriac's growing requirements.
Soil pH
Your soil pH (5.9–7.3) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.
Soil Texture
The silt loam soil in Brown County is excellent for Celeriac — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Celeriac is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.
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 | — | 1.6" | 0" | ❄️ Dormant |
| Mar | — | 2.2" | 0" | ❄️ Dormant |
| Apr | 3.9" | 3.1" | 0.8" | 💧 Light watering |
| May | 3.9" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jun | 3.9" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jul | 3.9" | 3.6" | 0.3" | 💧 Light watering |
| Aug | 3.9" | 4" | 0" | ✅ Rainfall sufficient |
| Sep | 3.9" | 3.7" | 0.2" | 💧 Light watering |
| Oct | 3.9" | 3.1" | 0.8" | 💧 Light watering |
| Nov | — | 2.8" | 0" | ❄️ Dormant |
| Dec | — | 2.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Brown 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 — Brown County, IN
Celeriac Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 8 | Mar 8 – Mar 22 |
| Transplant Outdoors | April 12 | Apr 12 – Apr 26 |
| Direct Sow | March 29 | Mar 29 – Apr 19 |
| Harvest | July 26 | Jul 26 – Aug 30 |
| Fall Sowing | August 11 | Aug 11 – Aug 25 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | — |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.9"/week · 1-2 times/week
📅 Days to Maturity
100–120 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 6b
📆 Growing Season
191 days in Brown County
Growing Tips for Celeriac in Brown County
Direct sow Celeriac outdoors after April 12 in Brown 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 Brown County, IN?
Brown County is in Zone 6b with an average last frost of April 12. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.
What planting zone is Brown County, IN?
Brown County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 20.
When should I plant Celeriac in Brown County, IN?
In Brown County, IN, plant Celeriac after the last frost (around April 12) and before the first frost (around October 20). Best results when soil holds above 50°F.
What growing zone is Brown County, IN for Celeriac?
Brown County sits in USDA Zone 6b. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.
Can Celeriac grow in Brown County's climate?
Yes — Celeriac grows well in Brown County's temperate climate. Brown County averages a 191-day frost-free season, with last frost around April 12 and first frost around October 20.
Your Brown County Garden Planner — Free
A 22-page printable planner built for Brown County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.