When to plant Celery in Idaho County, ID
Spring Celery in Idaho County goes in May 15–June 5, once nighttime temps stop dipping near freezing. A second sowing from July 12 to July 26 extends the harvest into fall.
When to Plant Celery in Idaho County, ID
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.
Idaho County, Idaho is in USDA Zone 6b. The average last spring frost is May 29 and the first fall frost is September 20, giving you a growing season of approximately 114 days.
At an elevation of 6,736 feet, Idaho County receives approximately 24.5 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.
Idaho County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Celery Planting Timeline — Idaho County, ID
Celery Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 24 | Apr 24 – May 8 |
| Transplant Outdoors | May 29 | May 29 – Jun 12 |
| Direct Sow | May 15 | May 15 – Jun 5 |
| Harvest | August 21 | Aug 21 – Oct 16 |
| Fall Sowing | July 12 | Jul 12 – Jul 26 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Start Indoors Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow |
| 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
80–120 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6b
📆 Growing Season
114 days in Idaho County
Growing Tips for Idaho County
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 Idaho County, ID?
Idaho County is in Zone 6b with an average last frost of May 29. Plan your Celery planting based on this frost date — see the calendar above for exact timing.
What planting zone is Idaho County, ID?
Idaho County, Idaho is in USDA Hardiness Zone 6b. The average last spring frost is May 29 and first fall frost is September 20.
When should I plant Celery in Idaho County, ID?
In Idaho County, ID, plant Celery after the last frost (around May 29) and before the first frost (around September 20). Best results when soil holds above 50°F.
What growing zone is Idaho County, ID for Celery?
Idaho County sits in USDA Zone 6b. Celery grows reliably in zones 2a through 10b, so it's a good fit here.
Can Celery grow in Idaho County's climate?
Yes — Celery grows well in Idaho County's temperate climate. Idaho County averages a 114-day frost-free season, with last frost around May 29 and first frost around September 20.
Your Idaho County Garden Planner — Free
A 22-page printable planner built for Idaho 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.