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When to Plant Catnip in Hardee County, FL

Hardee County, Florida Zone 9b May

Top priorities for Hardee County, Florida gardeners in May

May is a pivotal month for Hardee County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost January 27
Avg. first frost December 20
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Harvest catnip as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

A few tasks this May that'll pay off in June
  • 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.

Hardee County, Florida is in USDA Zone 9b. The average last spring frost is January 27 and the first fall frost is December 20, giving you a growing season of approximately 327 days.

At an elevation of 374 feet, Hardee County receives approximately 59.8 inches of rainfall annually with predominantly sand soil. Summer highs average 102°F, so Catnip may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Catnip will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Catnip root diseases.

Hardee County, FL (Zone 9b) Year-round
327 days
Last Spring Frost January 27
327 growing days
First Fall Frost December 20

Hardee County Soil Profile

Soil Type

Sand

Soil pH

4.9-5.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (189 days to spare)
Transplant: Jan 27 🍅 Harvest: Mar 31 – Jun 2
Recommended (50%) ✓ Fits season (194 days to spare)
Transplant: Feb 3 🍅 Harvest: Apr 7 – Jun 9
Safe Start (90%) ✓ Fits season (174 days to spare)
Transplant: Feb 28 🍅 Harvest: May 2 – Jul 4

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 Hardee County

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

Soil pH

Your soil pH (4.9–5.8) is more acidic than Catnip prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Hardee County warms quickly in spring but drains fast. Catnip will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Catnip.

Organic Matter

Organic matter is low (1.3%). Add 2-3 inches of compost before planting Catnip.

How to Plant Catnip

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

Succession Planting Catnip

6
successive plantings in your 327-day season

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

Plant 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 2.2" 2.7" 0" ✅ Rainfall sufficient
Feb 2.2" 3.1" 0" ✅ Rainfall sufficient
Mar 2.2" 3.3" 0" ✅ Rainfall sufficient
Apr 2.2" 2.9" 0" ✅ Rainfall sufficient
May 2.2" 3.8" 0" ✅ Rainfall sufficient
Jun 2.2" 8.7" 0" ✅ Rainfall sufficient
Jul 2.2" 10.3" 0" ✅ Rainfall sufficient
Aug 2.2" 8.7" 0" ✅ Rainfall sufficient
Sep 2.2" 7.5" 0" ✅ Rainfall sufficient
Oct 2.2" 4.6" 0" ✅ Rainfall sufficient
Nov 2.2" 2.1" 0.1" 💧 Light watering
Dec 2.2" 2.1" 0.1" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Hardee 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 ~1,855 GDD — county provides 8,692 GDD Excellent fit

Catnip Planting Timeline — Hardee County, FL

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors February 3 Feb 3 – Feb 17
Harvest April 7 Apr 7 – Jun 9

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

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: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

327 days in Hardee County

Growing Tips for Catnip in Hardee County

Direct sow Catnip outdoors after January 27 in Hardee County when soil has warmed and frost danger has passed.

Sandy soil in Hardee County dries quickly — mulch Catnip with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 102°F in Hardee County, provide afternoon shade for Catnip and water deeply in the morning.

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 Hardee County, FL?

Hardee County is in Zone 9b with an average last frost of January 27. Plan your Catnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Hardee County, FL?

Hardee County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 27 and first fall frost is December 20.

🌱

Your Hardee County Garden Planner — Free

A 24-page printable planner built for Hardee County (Zone 9b). 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 Hardee County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

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