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When to Plant Lima Beans in Yavapai County, AZ

Yavapai County, Arizona Zone 8b May

May to-do list for Yavapai County, Arizona

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

Avg. last frost April 9
Avg. first frost November 5
Soil temp (4") 60°F
Watering Critical
Pest pressure Moderate
Daylight 13.8 hrs
Looking ahead to June
  • 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.

Yavapai County, Arizona is in USDA Zone 8b. The average last spring frost is April 9 and the first fall frost is November 5, giving you a growing season of approximately 210 days.

At an elevation of 3,732 feet, Yavapai County receives approximately 14.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 101°F, so Lima Beans may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Lima Beans will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Lima Beans successfully. Mulch heavily to conserve soil moisture.

Yavapai County, AZ (Zone 8b) Long season
210 days
Last Spring Frost April 9
210 growing days
First Fall Frost November 5
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Yavapai County Soil Profile

Soil Type

Sandy Loam

Soil pH

7-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Transplant: Mar 26 🍅 Harvest: May 28 – Jul 9
Recommended (50%) ✓ Fits season (105 days to spare)
Transplant: Apr 9 🍅 Harvest: Jun 11 – Jul 23
Safe Start (90%) ✓ Fits season (103 days to spare)
Transplant: May 8 🍅 Harvest: Jul 10 – Aug 21

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 Yavapai County

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

Soil pH

Your soil pH (7.0–8.5) is more alkaline than Lima Beans prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Yavapai County warms quickly in spring but drains fast. Lima Beans will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Lima Beans.

Organic Matter

Organic matter is low (0.7%). Add 2-3 inches of compost before planting Lima Beans.

How to Plant Lima Beans

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

Succession Planting Lima Beans

4
successive plantings in your 210-day season

Sow every 6.9 weeks. Last sowing by Aug 07 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.3″/week
You supply
1.1″/week
Watering frequency 2-3 times/week
Season total 1,987 gal / 100 sq ft
Drought risk

Water stress score is 10/10 — 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" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 0.9" 0" ❄️ Dormant
Apr 3.9" 0.5" 3.4" 🚿 Regular watering
May 3.9" 0.4" 3.5" 🚿 Regular watering
Jun 3.9" 0.4" 3.5" 🚿 Regular watering
Jul 3.9" 2.8" 1.1" 💧 Light watering
Aug 3.9" 2.7" 1.2" 💧 Light watering
Sep 3.9" 1.7" 2.2" 🚿 Regular watering
Oct 3.9" 1.1" 2.8" 🚿 Regular watering
Nov 3.9" 0.8" 3.1" 🚿 Regular watering
Dec 1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Yavapai 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 ~1,931 GDD — county provides 5,407 GDD Excellent fit

Lima Beans Planting Timeline — Yavapai County, AZ

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow April 16 Apr 16 – May 7
Harvest June 18 Jun 18 – Jul 30

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May Direct Sow
June Harvest
July Harvest
August
September
October
November
December
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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 8b

📆 Growing Season

210 days in Yavapai County

Growing Tips for Lima Beans in Yavapai County

Direct sow Lima Beans outdoors after April 09 in Yavapai County when soil has warmed and frost danger has passed.

Sandy soil in Yavapai County dries quickly — mulch Lima Beans with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 101°F in Yavapai County, provide afternoon shade for Lima Beans and water deeply in the morning.

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

Yavapai County receives only 14" 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 Yavapai County, AZ?

Yavapai County is in Zone 8b with an average last frost of April 9. Plan your Lima Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Yavapai County, AZ?

Yavapai County, Arizona is in USDA Hardiness Zone 8b. The average last spring frost is April 9 and first fall frost is November 5.

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Your Yavapai County Garden Planner — Free

A 24-page printable planner built for Yavapai County (Zone 8b). 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 Yavapai County, AZ. 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.