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When to plant Catnip in Orange County, IN

In Orange County, Catnip is a spring-only crop. Plant April 21–May 5 once soil hits 50°F.

When to Plant Catnip in Orange County, IN

Orange County, Indiana Zone 6b June

June in the garden — Orange County, Indiana

Your garden in Orange County, Indiana is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost April 14
Avg. first frost October 20
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. It's harvest week for catnip

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

July prep starts now
  • First harvests: catnip

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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.

Orange County, Indiana is in USDA Zone 6b. The average last spring frost is April 14 and the first fall frost is October 20, giving you a growing season of approximately 189 days.

At an elevation of 1,246 feet, Orange County receives approximately 34.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Catnip during the growing season.

Orange County, IN (Zone 6b) Moderate season
189 days
Last Spring Frost April 14
189 growing days
First Fall Frost October 20

Orange County Soil Profile

Soil Type

Silt Loam

Soil pH

6.3-7

Drainage

Well Drained

Catnip Planting Risk Windows

Early Start (70% safe) ✓ Fits season (57 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 18 – Aug 20
Recommended (50%) ✓ Fits season (56 days to spare)
Transplant: Apr 21 🍅 Harvest: Jun 23 – Aug 25
Safe Start (90%) ✓ Fits season (51 days to spare)
Transplant: May 8 🍅 Harvest: Jul 10 – Sep 11

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Orange County

How your county's soil matches Catnip's growing requirements.

Soil pH

Your soil pH (6.3–7.0) is within Catnip's preferred range (6.0–7.5).

Soil Texture

The silt loam soil in Orange County is excellent for Catnip — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Catnip.

Organic Matter

Organic matter is excellent (4.8%) — Catnip will thrive.

How to Plant Catnip

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Catnip

3
successive plantings in your 189-day season

Sow every 6.9 weeks. Last sowing by Aug 01 to harvest before frost.

Catnip Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Catnip

Catnip needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Catnip Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 2.2" 3.1" 0" ✅ Rainfall sufficient
May 2.2" 4" 0" ✅ Rainfall sufficient
Jun 2.2" 4.6" 0" ✅ Rainfall sufficient
Jul 2.2" 3.6" 0" ✅ Rainfall sufficient
Aug 2.2" 4.2" 0" ✅ Rainfall sufficient
Sep 2.2" 3" 0" ✅ Rainfall sufficient
Oct 2.2" 2.4" 0" ✅ Rainfall sufficient
Nov 2.6" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Orange County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Catnip Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Catnip needs ~1,225 GDD — county provides 3,307 GDD Excellent fit

Catnip Planting Timeline — Orange County, IN

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors April 21 Apr 21 – May 5
Harvest June 23 Jun 23 – Aug 25

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June Harvest
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6b

📆 Growing Season

189 days in Orange County

Growing Tips for Catnip in Orange County

Direct sow Catnip outdoors after April 14 in Orange County when soil has warmed and frost danger has passed.

General growing tips

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

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Catnip in Orange County, IN?

Orange County is in Zone 6b with an average last frost of April 14. Plan your Catnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Orange County, IN?

Orange County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 14 and first fall frost is October 20.

When should I plant Catnip in Orange County, IN?

In Orange County, IN, plant Catnip after the last frost (around April 14) and before the first frost (around October 20). Best results when soil holds above 50°F.

What growing zone is Orange County, IN for Catnip?

Orange County sits in USDA Zone 6b. Catnip grows reliably in zones 3a through 9b, so it's a good fit here.

Can Catnip grow in Orange County's climate?

Yes — Catnip grows well in Orange County's temperate climate. Orange County averages a 189-day frost-free season, with last frost around April 14 and first frost around October 20.

🌱

Your Orange County Garden Planner — Free

A 22-page printable planner built for Orange County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Orange County, IN. 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.