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When to plant Celeriac in Musselshell County, MT

Plant Celeriac in Musselshell County from May 7 to May 28 in spring. Musselshell County sits in USDA Zone 4b, with last frost around May 14 and first frost on September 23. A second sowing from July 1 to July 15 extends the harvest into fall.

When to Plant Celeriac in Musselshell County, MT

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.

Musselshell County, Montana is in USDA Zone 4b. The average last spring frost is May 14 and the first fall frost is September 23, giving you a growing season of approximately 132 days.

At an elevation of 6,528 feet, Musselshell County receives approximately 15.4 inches of rainfall annually with predominantly loam soil. Summer highs average 82°F, so choose short-season varieties of Celeriac to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Celeriac successfully. Mulch heavily to conserve soil moisture.

Musselshell County, MT (Zone 4b) Short season
132 days
Last Spring Frost May 14
132 growing days
First Fall Frost September 23

Musselshell County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Celeriac Planting Timeline — Musselshell County, MT

Celeriac Planting Calendar

Activity When Date Range
Start Indoors April 2 Apr 2 – Apr 16
Transplant Outdoors May 14 May 14 – May 28
Direct Sow May 7 May 7 – May 28
Harvest August 27 Aug 27 – Oct 1
Fall Sowing July 1 Jul 1 – Jul 15

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors
May Transplant Outdoors Direct Sow
June
July Fall Sowing
August Harvest
September Harvest
October Harvest
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

High — keep soil consistently moist

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 4b

📆 Growing Season

132 days in Musselshell County

Growing Tips for Musselshell County

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

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celeriac in Musselshell County, MT?

Musselshell County is in Zone 4b with an average last frost of May 14. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Musselshell County, MT?

Musselshell County, Montana is in USDA Hardiness Zone 4b. The average last spring frost is May 14 and first fall frost is September 23.

When should I plant Celeriac in Musselshell County, MT?

In Musselshell County, MT, plant Celeriac after the last frost (around May 14) and before the first frost (around September 23). Best results when soil holds above 50°F.

What growing zone is Musselshell County, MT for Celeriac?

Musselshell 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 Musselshell County's climate?

Yes — Celeriac grows well in Musselshell County's temperate climate. Musselshell County averages a 132-day frost-free season, with last frost around May 14 and first frost around September 23.

🌱

Your Musselshell County Garden Planner — Free

A 22-page printable planner built for Musselshell 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Musselshell County, MT. Local conditions may vary. Last updated: July 2026.

Sources & credits

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