When to plant Celery in Treasure County, MT
Plant Celery in Treasure County, when soil hits 50°F — usually May 4. Continue planting through May 25 for the spring crop. A second sowing from July 9 to July 23 extends the harvest into fall.
When to Plant Celery in Treasure County, MT
What to do in June
Each item below is timed to Treasure County, Montana's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Fire up the seed-starting tray: celery
A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.
Before July arrives, get these ready
- Fall sowing: celery
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.
Treasure County, Montana is in USDA Zone 4b. The average last spring frost is May 11 and the first fall frost is October 1, giving you a growing season of approximately 143 days.
At an elevation of 6,726 feet, Treasure County receives approximately 17.1 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.
Treasure County Soil Profile
Soil Type
Loam
Soil pH
6.5-8.3
Drainage
Well Drained
Celery 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 Treasure County
How your county's soil matches Celery's growing requirements.
Soil pH
Your soil pH (6.5–8.3) is more alkaline than Celery prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
The loam soil in Treasure County is excellent for Celery — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.1%). Annual compost additions will help Celery.
How to Plant Celery
Fall planting: Sow 12 weeks before your first frost date for a fall harvest.
Celery Water Budget
Water stress score is 8/10 — 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 | — | 1.2" | 0" | ❄️ Dormant |
| Feb | — | 1" | 0" | ❄️ Dormant |
| Mar | — | 1.3" | 0" | ❄️ Dormant |
| Apr | — | 1.9" | 0" | ❄️ Dormant |
| May | 5.6" | 1.9" | 3.7" | 🚿 Regular watering |
| Jun | 5.6" | 1.3" | 4.3" | 🚿 Regular watering |
| Jul | 5.6" | 1.6" | 4" | 🚿 Regular watering |
| Aug | 5.6" | 1.5" | 4.1" | 🚿 Regular watering |
| Sep | 5.6" | 1.5" | 4.1" | 🚿 Regular watering |
| Oct | 5.6" | 1.6" | 4" | 🚿 Regular watering |
| Nov | — | 1.3" | 0" | ❄️ Dormant |
| Dec | — | 0.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in Treasure 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 Planting Timeline — Treasure County, MT
Celery Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 30 | Mar 30 – Apr 13 |
| Transplant Outdoors | May 11 | May 11 – May 25 |
| Direct Sow | May 4 | May 4 – May 25 |
| Harvest | August 3 | Aug 3 – Sep 28 |
| Fall Sowing | July 9 | Jul 9 – Jul 23 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Fall Sowing |
| August | Harvest |
| September | Harvest |
| October | — |
| 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
143 days in Treasure County
Growing Tips for Celery in Treasure County
Direct sow Celery outdoors after May 11 in Treasure County when soil has warmed and frost danger has passed.
Common pests for Celery in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.
Treasure County receives only 17" 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
Check more plant combinations with our Companion Planting Checker →
Celery in Other Locations
Frequently Asked Questions
When should I plant Celery in Treasure County, MT?
Treasure County is in Zone 4b with an average last frost of May 11. Plan your Celery planting based on this frost date — see the calendar above for exact timing.
What planting zone is Treasure County, MT?
Treasure County, Montana is in USDA Hardiness Zone 4b. The average last spring frost is May 11 and first fall frost is October 1.
When should I plant Celery in Treasure County, MT?
In Treasure County, MT, plant Celery after the last frost (around May 11) and before the first frost (around October 1). Best results when soil holds above 50°F.
What growing zone is Treasure County, MT for Celery?
Treasure County sits in USDA Zone 4b. Celery grows reliably in zones 2a through 10b, so it's a good fit here.
Can Celery grow in Treasure County's climate?
Yes — Celery grows well in Treasure County's temperate climate. Treasure County averages a 143-day frost-free season, with last frost around May 11 and first frost around October 1.
Your Treasure County Garden Planner — Free
A 22-page printable planner built for Treasure 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.