Blog

When to plant Celery in Dutton, MT

Plant Celery in Dutton after May 25; the prime window is May 18–June 8. A second sowing from June 24 to July 8 extends the harvest into fall.

When to Plant Celery in Dutton, MT

Celery
Teton County, Montana Zone 4b June

Your June planting checklist for Teton County, Montana

A quick June briefing for Teton County, Montana gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 25
Avg. first frost September 16
Soil temp (4") 40°F
Watering Critical
Pest pressure High
Daylight 15.8 hrs
  1. Kick off the fall garden with celery

    Your first frost is about 12 weeks away — plenty of time for these to mature.

Before July arrives, get these ready
  • Starting indoors: celery

Instant PDF download. No spam, unsubscribe any time.

Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Dutton, Montana is in USDA Zone 4b. The average last spring frost is May 25 and the first fall frost is September 16, giving you a growing season of approximately 114 days.

At an elevation of 8,276 feet, Teton County receives approximately 15.1 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Celery to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Celery successfully. Mulch heavily to conserve soil moisture.

Dutton, MT (Zone 4b) Short season
114 days
Last Spring Frost May 25
114 growing days
First Fall Frost September 16

Dutton Soil Profile

Soil Type

Loam

Soil pH

6.6-7.6

Drainage

Well Drained

Celery Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 8 Transplant: May 20 🍅 Harvest: Aug 12 – Oct 7
Recommended (50%) ✗ May not fit
Start indoors: Apr 13 Transplant: May 25 🍅 Harvest: Aug 17 – Oct 12
Safe Start (90%) ✗ May not fit
Start indoors: Apr 30 Transplant: Jun 11 🍅 Harvest: Sep 3 – Oct 29

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 Dutton

How your county's soil matches Celery's growing requirements.

Soil pH

Your soil pH (6.6–7.6) is more alkaline than Celery prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Teton County is excellent for Celery — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Celery is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Celery.

How to Plant Celery

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Celery Water Budget

Plant needs
1.3″/week
Rainfall provides
0.6″/week
You supply
1.4″/week
Watering frequency 2-3 times/week
Season total 1,380 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Celery

Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan 1.1" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.2" 0" ❄️ Dormant
Apr 1.5" 0" ❄️ Dormant
May 5.6" 1.7" 3.9" 🚿 Regular watering
Jun 5.6" 1.2" 4.4" 🚿 Regular watering
Jul 5.6" 1.4" 4.2" 🚿 Regular watering
Aug 5.6" 1.7" 3.9" 🚿 Regular watering
Sep 5.6" 1.3" 4.3" 🚿 Regular watering
Oct 1.3" 0" ❄️ Dormant
Nov 0.9" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Teton County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Celery 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.

Celery needs ~1,300 GDD — county provides 1,482 GDD Good fit

Celery Planting Timeline — Dutton, MT

Celery Planting Calendar

Activity When Date Range
Start Indoors April 13 Apr 13 – Apr 27
Transplant Outdoors May 25 May 25 – Jun 8
Direct Sow May 18 May 18 – Jun 8
Harvest August 17 Aug 17 – Oct 12
Fall Sowing June 24 Jun 24 – Jul 8

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 Transplant Outdoors Direct Sow Fall Sowing
July Fall Sowing
August Harvest
September Harvest
October Harvest
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 2-3 times/week

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 4b

📆 Growing Season

114 days in Teton County

Growing Tips for Celery in Dutton

Direct sow Celery outdoors after May 25 in Teton County when soil has warmed and frost danger has passed.

Your 114.0-day growing season in Teton County is tight for Celery (80.0-120.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Celery in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

Teton County receives only 15" of rain annually. Celery needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 10-12 weeks before last frost. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

When should I plant Celery in Dutton, MT?

In Dutton, MT, plant Celery after the last frost (around May 25) and before the first frost (around September 16). Best results when soil holds above 50°F.

What growing zone is Dutton, MT for Celery?

Dutton sits in USDA Zone 4b. Celery grows reliably in zones 2a through 10b, so it's a good fit here.

Can Celery grow in Dutton's climate?

Yes — Celery grows well in Dutton's temperate climate. Dutton averages a 114-day frost-free season, with last frost around May 25 and first frost around September 16.

🌱

Your Teton County Garden Planner — Free

A 22-page printable planner built for Teton 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.

Instant PDF download. No spam, unsubscribe any time.

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