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When to Plant Catnip in Rappahannock County, VA

Rappahannock County, Virginia Zone 7a May

This month in Rappahannock County, Virginia

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

Avg. last frost April 21
Avg. first frost October 19
Soil temp (4") 63°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
Get ahead of 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.

Rappahannock County, Virginia is in USDA Zone 7a. The average last spring frost is April 21 and the first fall frost is October 19, giving you a growing season of approximately 181 days.

At an elevation of 370 feet, Rappahannock County receives approximately 46.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Catnip during the growing season.

Rappahannock County, VA (Zone 7a) Moderate season
181 days
Last Spring Frost April 21
181 growing days
First Fall Frost October 19

Rappahannock County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (49 days to spare)
Transplant: Apr 22 🍅 Harvest: Jun 24 – Aug 26
Recommended (50%) ✓ Fits season (48 days to spare)
Transplant: Apr 28 🍅 Harvest: Jun 30 – Sep 1
Safe Start (90%) ✓ Fits season (38 days to spare)
Transplant: May 21 🍅 Harvest: Jul 23 – Sep 24

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 Rappahannock County

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

Soil pH

Your soil pH (5.5–6.9) overlaps with Catnip's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Catnip.

How to Plant Catnip

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

Succession Planting Catnip

3
successive plantings in your 181-day season

Sow every 6.9 weeks. Last sowing by Jul 31 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/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 3.9" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 2.2" 3.5" 0" ✅ Rainfall sufficient
May 2.2" 3.6" 0" ✅ Rainfall sufficient
Jun 2.2" 4.6" 0" ✅ Rainfall sufficient
Jul 2.2" 5.4" 0" ✅ Rainfall sufficient
Aug 2.2" 3.9" 0" ✅ Rainfall sufficient
Sep 2.2" 3.7" 0" ✅ Rainfall sufficient
Oct 2.2" 3.2" 0" ✅ Rainfall sufficient
Nov 3.2" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Rappahannock 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 ~1,068 GDD — county provides 2,760 GDD Excellent fit

Catnip Planting Timeline — Rappahannock County, VA

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors April 28 Apr 28 – May 12
Harvest June 30 Jun 30 – Sep 1

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 Harvest
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: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

181 days in Rappahannock County

Growing Tips for Catnip in Rappahannock County

Direct sow Catnip outdoors after April 21 in Rappahannock 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 Rappahannock County, VA?

Rappahannock County is in Zone 7a with an average last frost of April 21. Plan your Catnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Rappahannock County, VA?

Rappahannock County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 21 and first fall frost is October 19.

🌱

Your Rappahannock County Garden Planner — Free

A 24-page printable planner built for Rappahannock County (Zone 7a). 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 Rappahannock County, VA. 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.