When to plant Celery in El Paso County, CO
El Paso County gardeners should plant Celery between April 27 and May 18 in spring. With El Paso County's Zone 6a climate (last frost May 11), Celery needs 80–120 days to mature — plant by June 8 for a full harvest. A second sowing from July 28 to August 11 extends the harvest into fall.
When to Plant Celery in El Paso County, CO
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.
El Paso County, Colorado is in USDA Zone 6a. The average last spring frost is May 11 and the first fall frost is October 6, giving you a growing season of approximately 148 days.
At an elevation of 8,317 feet, El Paso County receives approximately 23.5 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Celery during the growing season.
El Paso County Soil Profile
Soil Type
Loam
Soil pH
6.5-7.9
Drainage
Well Drained
Monthly Watering Guide for Celery
Celery needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Celery Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.7" | 0" | ❄️ Dormant |
| Feb | — | 1.6" | 0" | ❄️ Dormant |
| Mar | — | 1.8" | 0" | ❄️ Dormant |
| Apr | — | 2.4" | 0" | ❄️ Dormant |
| May | 4.3" | 2.8" | 1.5" | 💧 Light watering |
| Jun | 4.3" | 1.6" | 2.7" | 🚿 Regular watering |
| Jul | 4.3" | 2.3" | 2" | 💧 Light watering |
| Aug | 4.3" | 3" | 1.3" | 💧 Light watering |
| Sep | 4.3" | 1.7" | 2.6" | 🚿 Regular watering |
| Oct | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Nov | — | 1.5" | 0" | ❄️ Dormant |
| Dec | — | 1.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Oct in El Paso County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Celery Planting Timeline — El Paso County, CO
Celery Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 6 | Apr 6 – Apr 20 |
| Transplant Outdoors | May 11 | May 11 – May 25 |
| Direct Sow | April 27 | Apr 27 – May 18 |
| Harvest | August 3 | Aug 3 – Sep 28 |
| Fall Sowing | July 28 | Jul 28 – Aug 11 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Fall Sowing |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | — |
| 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 6a
📆 Growing Season
148 days in El Paso County
Growing Tips for El Paso 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 El Paso County, CO?
El Paso County is in Zone 6a 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 El Paso County, CO?
El Paso County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 11 and first fall frost is October 6.
When should I plant Celery in El Paso County, CO?
In El Paso County, CO, plant Celery after the last frost (around May 11) and before the first frost (around October 6). Best results when soil holds above 50°F.
What growing zone is El Paso County, CO for Celery?
El Paso County sits in USDA Zone 6a. Celery grows reliably in zones 2a through 10b, so it's a good fit here.
Can Celery grow in El Paso County's climate?
Yes — Celery grows well in El Paso County's temperate climate. El Paso County averages a 148-day frost-free season, with last frost around May 11 and first frost around October 6.
Your El Paso County Garden Planner — Free
A 22-page printable planner built for El Paso County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.