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When to Plant Purslane in Montezuma County, CO

Montezuma County, Colorado Zone 7a May

Top priorities for Montezuma County, Colorado gardeners in May

Your Montezuma County, Colorado garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost May 27
Avg. first frost September 27
Soil temp (4") 34°F
Watering High
Pest pressure Low
Daylight 14 hrs
  1. Set out purslane seedlings

    Pick a cloudy afternoon or evening to plant. Less transplant shock, and your seedlings will barely blink.

  2. Seed purslane outdoors

    Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.

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Purslane is a succulent edible plant rich in omega-3 fatty acids, often considered a weed but increasingly valued as a nutritious green. It has a lemony, peppery flavor.

Montezuma County, Colorado is in USDA Zone 7a. The average last spring frost is May 27 and the first fall frost is September 27, giving you a growing season of approximately 123 days.

At an elevation of 8,063 feet, Montezuma County receives approximately 15.2 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Purslane to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Purslane successfully. Mulch heavily to conserve soil moisture.

Montezuma County, CO (Zone 7a) Short season
123 days
Last Spring Frost May 27
123 growing days
First Fall Frost September 27
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Montezuma County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (48 days to spare)
Start indoors: Apr 14 Transplant: May 19 🍅 Harvest: Jun 30 – Aug 4
Recommended (50%) ✓ Fits season (46 days to spare)
Start indoors: Apr 22 Transplant: May 27 🍅 Harvest: Jul 8 – Aug 12
Safe Start (90%) ✓ Fits season (45 days to spare)
Start indoors: May 9 Transplant: Jun 13 🍅 Harvest: Jul 25 – Aug 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 Montezuma County

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

Soil pH

Your soil pH (6.4–7.7) overlaps with Purslane's range (5.5–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Purslane.

How to Plant Purslane

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Purslane

3
successive plantings in your 123-day season

Sow every 4.6 weeks. Last sowing by Jul 29 to harvest before frost.

For a dedicated fall crop, sow by Jul 19.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Purslane

Purslane needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Purslane Needs Rainfall You Supplement Action
Jan 1.1" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.3" 0" ❄️ Dormant
Apr 1.7" 0" ❄️ Dormant
May 2.2" 1.8" 0.4" 💧 Light watering
Jun 2.2" 1.1" 1.1" 🚿 Regular watering
Jul 2.2" 1.3" 0.9" 💧 Light watering
Aug 2.2" 1.6" 0.6" 💧 Light watering
Sep 2.2" 1.3" 0.9" 💧 Light watering
Oct 1.5" 0" ❄️ Dormant
Nov 1.1" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

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

Purslane 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.

Purslane needs ~650 GDD — county provides 1,599 GDD Excellent fit

Purslane Planting Timeline — Montezuma County, CO

Purslane Planting Calendar

Activity When Date Range
Start Indoors April 22 Apr 22 – May 6
Transplant Outdoors May 27 May 27 – Jun 10
Direct Sow May 13 May 13 – Jun 3
Harvest July 8 Jul 8 – Aug 12
Fall Sowing July 19 Jul 19 – Aug 2

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

123 days in Montezuma County

Growing Tips for Purslane in Montezuma County

Direct sow Purslane outdoors after May 27 in Montezuma County when soil has warmed and frost danger has passed.

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

General growing tips

Direct sow after last frost or allow to self-seed. Purslane thrives in hot, dry conditions. Harvest stem tips regularly. Contains more omega-3 fatty acids than any other leafy green.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Purslane in Montezuma County, CO?

Montezuma County is in Zone 7a with an average last frost of May 27. Plan your Purslane planting based on this frost date — see the calendar above for exact timing.

What planting zone is Montezuma County, CO?

Montezuma County, Colorado is in USDA Hardiness Zone 7a. The average last spring frost is May 27 and first fall frost is September 27.

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Your Montezuma County Garden Planner — Free

A 24-page printable planner built for Montezuma County (Zone 7a). 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 Montezuma County, CO. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.