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When to Plant Kale in USDA Zone 8b

Kale
Zone 8b Zone 8b June

June to-do list for Zone 8b

A quick June briefing for Zone 8b gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 16
Avg. first frost November 13
  1. It's harvest week for kale

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Coming up in July — start thinking about
  • First harvests: kale
Download your personalised Zone 8b planting plan →
Kale

Kale is an exceptionally hardy, nutrient-dense green available in curly, lacinato, and Russian varieties. It tolerates heavy frost and often tastes sweeter after cold exposure.

In Zone 8b, the average last spring frost is around February 25 and the first fall frost is around November 28, giving you a growing season of approximately 276 days.

Zone 8b Year-round
276 days
Last Spring Frost February 25
276 growing days
First Fall Frost November 28

Kale Planting Timeline — Zone 8b

Where Is USDA Zone 8b?

The map below highlights the states that contain Zone 8b. Click any state to see the Kale planting schedule for that location.

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

Kale Planting Calendar — Zone 8b

Activity When Date Range
Start Indoors January 21 Jan 21 – Feb 4
Transplant Outdoors February 25 Feb 25 – Mar 11
Direct Sow February 11 Feb 11 – Mar 4
Harvest April 22 Apr 22 – Jun 17
Fall Sowing September 19 Sep 19 – Oct 3

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

Month-by-Month Timeline

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

Free Zone 8b Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 8b with start dates, transplant windows, and harvest times.

Instant PDF download. No spam, unsubscribe any time.

Growing Conditions

Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Moderate — regular watering

Days to Maturity

50–70 days

Soil pH

6 – 7.5

Zone Temperature Range

15°F to 20°F average annual minimum

Growing Season

276 days (Zone 8b average)

Planting Specifications

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

Succession Planting Kale in Zone 8b

6
successive plantings in Zone 8b's ~276-day season

Sow every 5.7 weeks for continuous harvest throughout the season.

Growing Tips for Kale in Zone 8b

Direct sow or transplant in early spring or late summer. Harvest outer leaves first to keep plants productive. Kale overwinters in many climates and can provide greens all year.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes
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Saving Kale Seeds

🌾 Save Your Own Kale Seeds
Life Cycle Biennial
Pollination Cross-Pollinated (insects)
How to Collect Allow 2nd year flower stalks to dry. Harvest pods when tan.
Storage Store airtight; viable 5 years at 35°F, under 50% humidity.

Isolate 1/2 mile from other brassicas (broccoli, cabbage, etc.) — they all cross.

Recommended for Your Garden

🌱
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.

🏷️
Garden Plant Markers $6-12

Keep your garden organized with durable, weather-resistant plant labels.

Related Plants

Frequently Asked Questions

When should I plant Kale in Zone 8b?

In Zone 8b, plan your Kale planting around the average last frost date of February 25. Start seeds indoors around January 21. Direct sow outdoors around February 11. Transplant seedlings around February 25.

Can Kale grow in Zone 8b?

Yes, Kale can grow well in Zone 8b, hardy in USDA zones 2a through 11b. Zone 8b has a growing season of approximately 276 days, which is sufficient for Kale (50-70 days to maturity).

When can I harvest Kale in Zone 8b?

In Zone 8b, expect to harvest Kale from April 22 – June 17. Kale takes 50-70 days from planting to harvest.

What is the last frost date for Zone 8b?

The average last spring frost in Zone 8b is around February 25, and the first fall frost is around November 28. This gives a growing season of approximately 276 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Kale?

Good companion plants for Kale include Beets, Celery, Lettuce, Onion. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Your Zone 8b Garden Planner — Free

A 22-page printable planner tailored to Zone 8b. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.

Instant PDF download. No spam, unsubscribe any time.

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: June 2026.

Sources & credits

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