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When to Plant Kidney Beans in USDA Zone 9b

Kidney beans are a popular dry bean variety named for their shape, available in red and white types. They are the classic bean for chili and red beans and rice.

In Zone 9b, the average last spring frost is around January 25 and the first fall frost is around December 20, giving you a growing season of approximately 329 days.

Zone 9b Year-round
329 days
Last Spring Frost January 25
329 growing days
First Fall Frost December 20

Kidney Beans Planting Timeline — Zone 9b

Where Is USDA Zone 9b?

The map below highlights the states that contain Zone 9b. Click any state to see the Kidney Beans planting schedule for that location.

Prints a clean, ink-friendly version without maps or navigation.

Kidney Beans Planting Calendar — Zone 9b

Activity When Date Range
Direct Sow February 1 Feb 1 – Feb 22
Harvest May 3 May 3 – Jun 7

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

Month-by-Month Timeline

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

Free Zone 9b Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 9b with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

Days to Maturity

85–110 days

Soil pH

6 – 7.5

Zone Temperature Range

25°F to 30°F average annual minimum

Growing Season

329 days (Zone 9b average)

Planting Specifications

Planting Depth1 inches
Plant Spacing15 inches apart
Row Spacing24 inches between rows

Growing Tips for Kidney Beans in Zone 9b

Zone 9b offers a long growing season (~329 days). You can plant Kidney Beans earlier and may get multiple harvests.

Direct sow after frost. Allow pods to dry completely on the plant. Kidney beans must be thoroughly cooked as raw or undercooked beans contain harmful lectins.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Level Up Your Garden

Saving Kidney Beans Seeds

Recommended for Your Garden

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Garden Shade Cloth $15-35

Reduce heat stress and sun scorch in hot climates with UV-stabilized shade cloth.

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Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

Related Plants

Frequently Asked Questions

When should I plant Kidney Beans in Zone 9b?

In Zone 9b, plan your Kidney Beans planting around the average last frost date of January 25. Direct sow outdoors around February 1.

Can Kidney Beans grow in Zone 9b?

Yes, Kidney Beans can grow well in Zone 9b, hardy in USDA zones 3a through 11b. Zone 9b has a growing season of approximately 329 days, which is sufficient for Kidney Beans (85-110 days to maturity).

When can I harvest Kidney Beans in Zone 9b?

In Zone 9b, expect to harvest Kidney Beans from May 3 – June 7. Kidney Beans takes 85-110 days from planting to harvest.

What is the last frost date for Zone 9b?

The average last spring frost in Zone 9b is around January 25, and the first fall frost is around December 20. This gives a growing season of approximately 329 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Kidney Beans?

Good companion plants for Kidney Beans include Corn, Squash Summer. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner — organize your planting dates for Zone 9b, track your crops, and plan your garden season from seed to harvest.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — local conditions may vary. Last updated: April 2026.