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When to plant Lima Beans in Phillips County County,

In Zone 5b (Phillips County County), direct-sow Lima Beans between May 11 and June 1 for spring, after the May 4 last-frost mark.

When to Plant Lima Beans in Phillips County, CO

Phillips County, Colorado Zone 5b June

This month in Phillips County, Colorado

Your garden in Phillips County, Colorado is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost May 4
Avg. first frost October 7
Soil temp (4") 54°F
Watering High
Pest pressure High
Daylight 14.9 hrs
Looking ahead to July
  • First harvests: lima beans

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Lima beans are a warm-season legume producing large, creamy beans with a buttery texture. Both bush and pole varieties are available, with pole types yielding more.

Phillips County, Colorado is in USDA Zone 5b. The average last spring frost is May 4 and the first fall frost is October 7, giving you a growing season of approximately 156 days.

At an elevation of 5,494 feet, Phillips County receives approximately 21.1 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Lima Beans during the growing season.

Phillips County, CO (Zone 5b) Moderate season
156 days
Last Spring Frost May 4
156 growing days
First Fall Frost October 7

Phillips County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.8

Drainage

Well Drained

Lima Beans Planting Risk Windows

Early Start (70% safe) ✓ Fits season (52 days to spare)
Transplant: Apr 30 🍅 Harvest: Jul 2 – Aug 13
Recommended (50%) ✓ Fits season (51 days to spare)
Transplant: May 4 🍅 Harvest: Jul 6 – Aug 17
Safe Start (90%) ✓ Fits season (46 days to spare)
Transplant: May 19 🍅 Harvest: Jul 21 – Sep 1

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 Phillips County

How your county's soil matches Lima Beans's growing requirements.

Soil pH

Your soil pH (6.5–7.8) is more alkaline than Lima Beans prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Phillips County is excellent for Lima Beans — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Lima Beans.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Lima Beans.

How to Plant Lima Beans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Lima Beans

3
successive plantings in your 156-day season

Sow every 6.9 weeks. Last sowing by Jul 09 to harvest before frost.

Lima Beans Water Budget

Plant needs
0.9″/week
Rainfall provides
0.6″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 1,003 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Lima Beans

Lima Beans needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Lima Beans Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.3" 0" ❄️ Dormant
Mar 1.6" 0" ❄️ Dormant
Apr 1.9" 0" ❄️ Dormant
May 3.9" 2.8" 1.1" 💧 Light watering
Jun 3.9" 1.5" 2.4" 🚿 Regular watering
Jul 3.9" 1.6" 2.3" 🚿 Regular watering
Aug 3.9" 2.5" 1.4" 💧 Light watering
Sep 3.9" 1.7" 2.2" 🚿 Regular watering
Oct 3.9" 1.8" 2.1" 🚿 Regular watering
Nov 1.7" 0" ❄️ Dormant
Dec 1.3" 0" ❄️ Dormant

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

Lima Beans 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.

Lima Beans needs ~1,144 GDD — county provides 2,379 GDD Excellent fit

Lima Beans Planting Timeline — Phillips County, CO

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow May 11 May 11 – Jun 1
Harvest July 13 Jul 13 – Aug 24

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Direct Sow
June Direct Sow
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · 2-3 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5b

📆 Growing Season

156 days in Phillips County

Growing Tips for Lima Beans in Phillips County

Direct sow Lima Beans outdoors after May 04 in Phillips County when soil has warmed and frost danger has passed.

Common pests for Lima Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

Phillips County receives only 21" of rain annually. Lima Beans needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after soil is thoroughly warm at 65F or above. Do not soak seeds before planting as they may crack. Harvest when pods are plump but still green for fresh limas.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lima Beans in Phillips County, CO?

Phillips County is in Zone 5b with an average last frost of May 4. Plan your Lima Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Phillips County, CO?

Phillips County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is May 4 and first fall frost is October 7.

When should I plant Lima Beans in Phillips County, ?

In Phillips County, , plant Lima Beans after the last frost (around May 4) and before the first frost (around October 7). Best results when soil holds above 50°F.

What growing zone is Phillips County, for Lima Beans?

Phillips County sits in USDA Zone 5b. Lima Beans grows reliably in zones 3a through 11b, so it's a good fit here.

Can Lima Beans grow in Phillips County's climate?

Yes — Lima Beans grows well in Phillips County's temperate climate. Phillips County averages a 156-day frost-free season, with last frost around May 4 and first frost around October 7.

🌱

Your Phillips County Garden Planner — Free

A 22-page printable planner built for Phillips County (Zone 5b). 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 Phillips County, CO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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