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When to plant Corn in Kings County, CA

Plant Corn in Kings County after February 14; the prime window is February 21–March 14.

When to Plant Corn in Kings County, CA

Corn

Corn is a warm-season grass grown for its sweet ears, which are best eaten soon after harvest. It is wind-pollinated and must be planted in blocks for good kernel fill.

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 102°F, so Corn may need afternoon shade and extra watering during peak heat. With low rainfall, drip irrigation is essential for growing Corn 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

6.0-7.0

Drainage

Well Drained

How Much Corn to Grow

1-2 ears
Average yield per plant
15
Plants per person
30 sq ft
Space per person

For a family of 4, plant approximately 60 corn plants in about 120 sq ft. In Kings County's 291-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Corn Planting Timeline — Kings County, CA

Corn Planting Calendar

Activity When Date Range
Direct Sow February 21 Feb 21 – Mar 14
Harvest April 25 Apr 25 – Jun 20

Plant 1" deep · 12" apart · Rows 36" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–100 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 9a

📆 Growing Season

291 days in Kings County

Growing Tips for Kings County

Plant in blocks of at least 4 rows rather than single rows for proper pollination. Direct sow after soil reaches 60F. Side-dress with nitrogen when plants are knee-high.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Celery

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Corn in Kings County, CA?

Kings County is in Zone 9a with an average last frost of February 14. Plan your Corn planting based on this frost date — 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.

When should I plant Corn in Kings County, CA?

In Kings County, CA, plant Corn after the last frost (around February 14) and before the first frost (around December 2). Best results when soil holds above 50°F.

What growing zone is Kings County, CA for Corn?

Kings County sits in USDA Zone 9a. Corn grows reliably in zones 3a through 11b, so it's a good fit here.

Can Corn grow in Kings County's climate?

Yes — Corn grows well in Kings County's temperate climate. Kings County averages a 292-day frost-free season, with last frost around February 14 and first frost around December 2.

🌱

Your Kings County Garden Planner — Free

A 22-page printable planner built for Kings County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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: August 2026.

Sources & credits

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