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When to plant Arugula in Las Animas County, CO

Spring Arugula in Las Animas County goes in April 26–May 17, once nighttime temps stop dipping near freezing. A second sowing from July 26 to August 9 extends the harvest into fall.

When to Plant Arugula in Las Animas County, CO

Arugula is a fast-growing cool-season green with a peppery, nutty flavor. It is excellent in salads and can be harvested as baby greens or mature leaves.

Las Animas County, Colorado is in USDA Zone 6a. The average last spring frost is May 10 and the first fall frost is October 4, giving you a growing season of approximately 147 days.

At an elevation of 5,352 feet, Las Animas County receives approximately 20.2 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Arugula during the growing season.

Las Animas County, CO (Zone 6a) Short season
147 days
Last Spring Frost May 10
147 growing days
First Fall Frost October 4

Las Animas County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.9

Drainage

Well Drained

Monthly Watering Guide for Arugula

Arugula needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Arugula Needs Rainfall You Supplement Action
Jan 1.2" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 1.9" 0" ❄️ Dormant
Apr 2.1" 0" ❄️ Dormant
May 4.3" 2.5" 1.8" 💧 Light watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 1.7" 2.6" 🚿 Regular watering
Aug 4.3" 1.9" 2.4" 🚿 Regular watering
Sep 4.3" 1.5" 2.8" 🚿 Regular watering
Oct 4.3" 1.8" 2.5" 🚿 Regular watering
Nov 1.6" 0" ❄️ Dormant
Dec 1.2" 0" ❄️ Dormant

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

Arugula Planting Timeline — Las Animas County, CO

Arugula Planting Calendar

Activity When Date Range
Start Indoors April 5 Apr 5 – Apr 19
Transplant Outdoors May 10 May 10 – May 24
Direct Sow April 26 Apr 26 – May 17
Harvest June 14 Jun 14 – Aug 16
Fall Sowing July 26 Jul 26 – Aug 9

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

30–50 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

147 days in Las Animas County

Growing Tips for Las Animas County

Sow seeds directly every 2-3 weeks for continuous harvest. Provide afternoon shade in warm weather to prevent bolting. Harvest outer leaves first to extend production.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Arugula in Las Animas County, CO?

Las Animas County is in Zone 6a with an average last frost of May 10. Plan your Arugula planting based on this frost date — see the calendar above for exact timing.

What planting zone is Las Animas County, CO?

Las Animas County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 10 and first fall frost is October 4.

When should I plant Arugula in Las Animas County, CO?

In Las Animas County, CO, plant Arugula after the last frost (around May 10) and before the first frost (around October 4). Best results when soil holds above 50°F.

What growing zone is Las Animas County, CO for Arugula?

Las Animas County sits in USDA Zone 6a. Arugula grows reliably in zones 3a through 11b, so it's a good fit here.

Can Arugula grow in Las Animas County's climate?

Yes — Arugula grows well in Las Animas County's temperate climate. Las Animas County averages a 147-day frost-free season, with last frost around May 10 and first frost around October 4.

🌱

Your Las Animas County Garden Planner — Free

A 22-page printable planner built for Las Animas 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.

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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 Las Animas County, CO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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