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When to Plant Pole Beans in Yuma County, AZ

Pole beans are climbing varieties of green beans that produce over a much longer season than bush types. They require trellising but yield more per square foot.

Yuma County, Arizona is in USDA Zone 10a. The average last spring frost is February 10 and the first fall frost is December 1, giving you a growing season of approximately 294 days.

At an elevation of 4,781 feet, Yuma County receives approximately 9.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 92ยฐF, providing good warmth for Pole Beans during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Pole Beans will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Pole Beans successfully. Mulch heavily to conserve soil moisture.

Yuma County, AZ (Zone 10a) Year-round
294 days
Last Spring Frost February 10
294 growing days
First Fall Frost December 1

Yuma County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.9-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (177 days to spare)
Start indoors: Dec 23 Transplant: Feb 10 🍅 Harvest: Apr 7 – Jun 2
Recommended (50%) ✓ Fits season (175 days to spare)
Start indoors: Dec 30 Transplant: Feb 17 🍅 Harvest: Apr 14 – Jun 9
Safe Start (90%) ✓ Fits season (165 days to spare)
Start indoors: Jan 26 Transplant: Mar 16 🍅 Harvest: May 11 – Jul 6

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.1″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 2,729 gal / 100 sq ft
Drought risk

Water stress score is 10/10 โ€” consider drought-tolerant varieties and mulching

Pole Beans needs ~1,188 GDD — county provides 5,605 GDD Excellent fit

Pole Beans Planting Timeline โ€” Yuma County, AZ

Pole Beans Planting Calendar

Activity When Date Range
Start Indoors December 30 Dec 30 โ€“ Jan 13
Transplant Outdoors February 17 Feb 17 โ€“ Mar 3
Direct Sow February 10 Feb 10 โ€“ Mar 3
Harvest April 14 Apr 14 โ€“ Jun 9

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

55โ€“70 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 10a

Growing Season

294 days

Growing Tips for Yuma County

Provide sturdy 6-8 foot poles, tepees, or trellises. Direct sow after last frost. Pick regularly to encourage continued production. Beans fix nitrogen benefiting following crops.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Level Up Your Garden

Frequently Asked Questions

When should I plant Pole Beans in Yuma County, AZ?

Yuma County is in Zone 10a with an average last frost of February 10. Plan your Pole Beans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Yuma County, AZ?

Yuma County, Arizona is in USDA Hardiness Zone 10a. The average last spring frost is February 10 and first fall frost is December 1.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Yuma County gardeners in Zone 10a organize planting dates, track what's growing, and never miss a planting window.

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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 Yuma County, AZ. Local conditions may vary. Last updated: April 2026.