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When to Plant Sorrel in USDA Zone 3b

Zone 3b Zone 3b June

This month in Zone 3b

Welcome to June in Zone 3b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost May 16
Avg. first frost September 22
  1. Start sorrel under lights

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Bring in the sorrel

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

  3. Kick off the fall garden with sorrel

    Count back from your first frost (September 22) — these need to mature before the cold arrives.

July will be here before you know it — start on
  • First harvests: sorrel
Want it on paper? Download your Zone 3b planting guide →

Sorrel is a perennial herb with tangy, lemon-flavored arrow-shaped leaves. It is one of the first greens to emerge in spring and is used in soups and salads.

In Zone 3b, the average last spring frost is around May 10 and the first fall frost is around September 22, giving you a growing season of approximately 135 days.

Zone 3b Short season
135 days
Last Spring Frost May 10
135 growing days
First Fall Frost September 22

Sorrel Planting Timeline — Zone 3b

Where Is USDA Zone 3b?

The map below highlights the states that contain Zone 3b. Click any state to see the Sorrel planting schedule for that location.

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

Sorrel Planting Calendar — Zone 3b

Activity When Date Range
Start Indoors March 29 Mar 29 – Apr 12
Transplant Outdoors May 3 May 3 – May 17
Direct Sow May 3 May 3 – May 24
Harvest June 14 Jun 14 – Aug 16
Fall Sowing June 30 Jun 30 – Jul 14

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Free Zone 3b Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 3b with start dates, transplant windows, and harvest times.

Instant PDF download. No spam, unsubscribe any time.

Growing Conditions

Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

Days to Maturity

40–60 days

Soil pH

5.5 – 7

Zone Temperature Range

-35°F to -30°F average annual minimum

Growing Season

135 days (Zone 3b average)

Planting Specifications

Planting Depth0.5 inches
Plant Spacing8 inches apart
Row Spacing12 inches between rows

Succession Planting Sorrel in Zone 3b

3
successive plantings in Zone 3b's ~135-day season

Sow every 4.6 weeks for continuous harvest throughout the season.

Growing Tips for Sorrel in Zone 3b

Zone 3b has a short growing season (~135 days). Start Sorrel indoors early and use season-extension techniques like row covers and cold frames.

Direct sow in early spring or fall. Remove flower stalks promptly to encourage leaf production. Divide clumps every 3-4 years. Young leaves have the best flavor.

Companion Planting

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Saving Sorrel Seeds

Recommended for Your Garden

💡
LED Grow Lights $25-60

Full-spectrum LED lights for starting seeds indoors when daylight is limited.

🔥
Seedling Heat Mat $15-35

Warm soil for faster germination of heat-loving crops like tomatoes and peppers.

🪡
Floating Row Covers $12-30

Protect plants from frost, wind, and pests while letting light and water through.

Related Plants

Frequently Asked Questions

When should I plant Sorrel in Zone 3b?

In Zone 3b, plan your Sorrel planting around the average last frost date of May 10. Start seeds indoors around March 29. Direct sow outdoors around May 3. Transplant seedlings around May 3.

Can Sorrel grow in Zone 3b?

Yes, Sorrel can grow well in Zone 3b, hardy in USDA zones 3a through 9b. Zone 3b has a growing season of approximately 135 days, which is sufficient for Sorrel (40-60 days to maturity).

When can I harvest Sorrel in Zone 3b?

In Zone 3b, expect to harvest Sorrel from June 14 – August 16. Sorrel takes 40-60 days from planting to harvest.

What is the last frost date for Zone 3b?

The average last spring frost in Zone 3b is around May 10, and the first fall frost is around September 22. This gives a growing season of approximately 135 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Sorrel?

Good companion plants for Sorrel include Strawberries, Lettuce, Spinach. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Your Zone 3b Garden Planner — Free

A 22-page printable planner tailored to Zone 3b. 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.