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When to Plant Green Beans in Kings County, CA

Green beans are a warm-season staple available as bush or pole types. Bush beans produce a concentrated harvest while pole beans provide a longer picking season.

Kings County, California is in USDA Zone 9a. The average last spring frost is February 14 and the first fall frost is December 2, giving you a growing season of approximately 291 days.

At an elevation of 2,065 feet, Kings County receives approximately 18.8 inches of rainfall annually with predominantly loam soil. Summer highs average 102ยฐF, so Green Beans may need afternoon shade and extra watering during peak heat. With low rainfall, drip irrigation is essential for growing Green Beans successfully. Mulch heavily to conserve soil moisture.

Kings County, CA (Zone 9a) Year-round
291 days
Last Spring Frost February 14
291 growing days
First Fall Frost December 2

Kings County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (185 days to spare)
Transplant: Jan 31 🍅 Harvest: Mar 28 – May 23
Recommended (50%) ✓ Fits season (179 days to spare)
Transplant: Feb 14 🍅 Harvest: Apr 11 – Jun 6
Safe Start (90%) ✓ Fits season (177 days to spare)
Transplant: Mar 8 🍅 Harvest: May 3 – Jun 28

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 Kings County

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

Soil pH

Your soil pH (6.5โ€“7.4) overlaps with Green Beans's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Kings County is excellent for Green Beans โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.1%). Annual compost additions will help Green Beans.

How to Plant Green Beans

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

Succession Planting Green Beans

7
successive plantings in your 291-day season

Sow every 5.7 weeks. Last sowing by Sep 28 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.3″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 1,963 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Green Beans

Green 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 Green Beans Needs Rainfall You Supplement Action
Jan โ€” 3.6" 0" โ„๏ธ Dormant
Feb 3.9" 4" 0" โœ… Rainfall sufficient
Mar 3.9" 3.2" 0.7" ๐Ÿ’ง Light watering
Apr 3.9" 1.4" 2.5" ๐Ÿšฟ Regular watering
May 3.9" 0.5" 3.4" ๐Ÿšฟ Regular watering
Jun 3.9" 0.1" 3.8" ๐Ÿšฟ Regular watering
Jul 3.9" 0" 3.9" ๐Ÿšฟ Regular watering
Aug 3.9" 0" 3.9" ๐Ÿšฟ Regular watering
Sep 3.9" 0.2" 3.7" ๐Ÿšฟ Regular watering
Oct 3.9" 0.7" 3.2" ๐Ÿšฟ Regular watering
Nov 3.9" 1.9" 2" ๐Ÿšฟ Regular watering
Dec 3.9" 3.2" 0.7" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Kings County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Green 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" โ€” every day above 50ยฐF 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.

Green Beans needs ~1,524 GDD — county provides 7,738 GDD Excellent fit

Green Beans Planting Timeline โ€” Kings County, CA

Green Beans Planting Calendar

Activity When Date Range
Direct Sow February 21 Feb 21 โ€“ Mar 14
Harvest April 18 Apr 18 โ€“ Jun 13

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.9"/week ยท 2-3 times/week

๐Ÿ“… Days to Maturity

50โ€“65 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

291 days in Kings County

Growing Tips for Green Beans in Kings County

Direct sow Green Beans outdoors after February 14 in Kings County when soil has warmed and frost danger has passed.

With summer highs reaching 102ยฐF in Kings County, provide afternoon shade for Green Beans and water deeply in the morning.

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

Kings County receives only 19" of rain annually. Green Beans needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost when soil is warm. Provide sturdy supports for pole varieties. Pick beans regularly when young and tender to encourage continued production.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

๐ŸŒพ Save Your Own Green Beans Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Allow pods to dry fully on vine until they rattle.
Storage Store airtight; viable 4 years at 35ยฐF, under 45% humidity.

Avoid harvesting during damp weather. Isolate 25 ft between varieties.

Frequently Asked Questions

When should I plant Green Beans in Kings County, CA?

Kings County is in Zone 9a with an average last frost of February 14. Plan your Green Beans planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Kings County, CA?

Kings County, California is in USDA Hardiness Zone 9a. The average last spring frost is February 14 and first fall frost is December 2.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Kings County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Kings County, CA. Local conditions may vary. Last updated: April 2026.