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When to Plant Cilantro in USDA Zone 5a

Cilantro
Zone 5a Zone 5a July

Top priorities for Zone 5a gardeners in July

Your garden in Zone 5a is working on a schedule, even when you're not. Here's where you should be this July.

Avg. last frost May 6
Avg. first frost October 6
  1. Harvest cilantro as they ripen

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

  2. Kick off the fall garden with cilantro

    A row cover ready in the garage extends your harvest by weeks once the nights turn cold.

A few tasks this July that'll pay off in August
  • First harvests: cilantro
Get your free Zone 5a 2026 Planting Guide →
Cilantro

Cilantro is a dual-purpose herb providing fresh leaves (cilantro) and dried seeds (coriander). It bolts quickly in heat, producing flowers beloved by beneficial insects.

In Zone 5a, the average last spring frost is around April 25 and the first fall frost is around October 8, giving you a growing season of approximately 166 days.

Zone 5a Moderate season
166 days
Last Spring Frost April 25
166 growing days
First Fall Frost October 8

Cilantro Planting Timeline — Zone 5a

Where Is USDA Zone 5a?

The map below highlights the states that contain Zone 5a. Click any state to see the Cilantro planting schedule for that location.

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

Cilantro Planting Calendar — Zone 5a

Activity When Date Range
Start Indoors March 21 Mar 21 – Apr 4
Transplant Outdoors April 18 Apr 18 – May 2
Direct Sow April 11 Apr 11 – May 2
Harvest May 30 May 30 – Aug 1
Fall Sowing July 30 Jul 30 – Aug 13

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

Month-by-Month Timeline

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

Free Zone 5a Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 5a with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Partial Shade (3-6 hours)

💧 Water

0.5"/week · Moderate — regular watering

Days to Maturity

40–60 days

Soil pH

6 – 7

Zone Temperature Range

-20°F to -15°F average annual minimum

Growing Season

166 days (Zone 5a average)

Planting Specifications

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

Succession Planting Cilantro in Zone 5a

4
successive plantings in Zone 5a's ~166-day season

Sow every 4.6 weeks for continuous harvest throughout the season.

Growing Tips for Cilantro in Zone 5a

Succession sow every 2-3 weeks. Provide afternoon shade in warm weather. Harvest leaves before flowering or allow some plants to go to seed for coriander and self-sowing.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
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Saving Cilantro Seeds

Recommended for Your Garden

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Fabric Grow Bags $10-25

Breathable fabric pots that promote healthy root growth and prevent overwatering.

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Self-Watering Planters $15-40

Built-in reservoir keeps herbs and greens consistently watered with less effort.

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Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

Related Plants

Frequently Asked Questions

When should I plant Cilantro in Zone 5a?

In Zone 5a, plan your Cilantro planting around the average last frost date of April 25. Start seeds indoors around March 21. Direct sow outdoors around April 11. Transplant seedlings around April 18.

Can Cilantro grow in Zone 5a?

Yes, Cilantro can grow well in Zone 5a, hardy in USDA zones 2a through 11b. Zone 5a has a growing season of approximately 166 days, which is sufficient for Cilantro (40-60 days to maturity).

When can I harvest Cilantro in Zone 5a?

In Zone 5a, expect to harvest Cilantro from May 30 – August 1. Cilantro takes 40-60 days from planting to harvest.

What is the last frost date for Zone 5a?

The average last spring frost in Zone 5a is around April 25, and the first fall frost is around October 8. This gives a growing season of approximately 166 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Cilantro?

Good companion plants for Cilantro include Tomatoes, Peppers, Spinach. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Your Zone 5a Garden Planner — Free

A 22-page printable planner tailored to Zone 5a. 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: July 2026.

Sources & credits

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