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When to Plant Catnip in USDA Zone 9b

Zone 9b Zone 9b July

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We've pulled the most time-sensitive tasks for Zone 9b this July and put them front and centre. Tackle them in order.

Avg. last frost February 14
Avg. first frost December 4
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Catnip is a hardy perennial herb in the mint family known for its effect on cats. It also makes a calming tea and is a useful companion plant that repels some pests.

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

Catnip 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 Catnip planting schedule for that location.

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

Catnip Planting Calendar — Zone 9b

Activity When Date Range
Transplant Outdoors February 1 Feb 1 – Feb 15
Harvest April 5 Apr 5 – Jun 7

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

Month-by-Month Timeline

MonthActivities
January
February Transplant Outdoors
March
April Harvest
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

Low — drought tolerant

Days to Maturity

60–80 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 Depth0.5 inches
Plant Spacing8 inches apart
Row Spacing12 inches between rows

Succession Planting Catnip in Zone 9b

6
successive plantings in Zone 9b's ~329-day season

Sow every 6.9 weeks for continuous harvest throughout the season.

Growing Tips for Catnip in Zone 9b

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

Direct sow or start indoors. Catnip is very easy to grow and can become invasive. Harvest leaves before flowering for tea. Protect young plants from cats.

Companion Planting

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Saving Catnip Seeds

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

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Self-Watering Planters $15-40

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Frequently Asked Questions

When should I plant Catnip in Zone 9b?

In Zone 9b, plan your Catnip planting around the average last frost date of January 25. Transplant seedlings around February 1.

Can Catnip grow in Zone 9b?

Yes, Catnip can grow well in Zone 9b, hardy in USDA zones 3a through 9b. Zone 9b has a growing season of approximately 329 days, which is sufficient for Catnip (60-80 days to maturity).

When can I harvest Catnip in Zone 9b?

In Zone 9b, expect to harvest Catnip from April 5 – June 7. Catnip takes 60-80 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 Catnip?

Good companion plants for Catnip include Squash Summer, Pumpkin, Beets. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Your Zone 9b Garden Planner — Free

A 22-page printable planner tailored to Zone 9b. Planting dates, monthly task lists, harvest log, seed inventory, and succession charts — everything you need to plan a full season.

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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: July 2026.

Sources & credits

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