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When to Plant Catnip in Rusk County, TX

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.

Rusk County, Texas is in USDA Zone 8a. The average last spring frost is March 9 and the first fall frost is November 17, giving you a growing season of approximately 253 days.

At an elevation of 252 feet, Rusk County receives approximately 66.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 90ยฐF, providing good warmth for Catnip during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” 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.

Rusk County, TX (Zone 8a) Long season
253 days
Last Spring Frost March 9
253 growing days
First Fall Frost November 17

Rusk County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Transplant: Mar 7 🍅 Harvest: May 9 – Jul 11
Recommended (50%) ✓ Fits season (120 days to spare)
Transplant: Mar 16 🍅 Harvest: May 18 – Jul 20
Safe Start (90%) ✓ Fits season (114 days to spare)
Transplant: Apr 5 🍅 Harvest: Jun 7 – Aug 9

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 Rusk County

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

Soil pH

Your soil pH (5.3โ€“6.7) overlaps with Catnip's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is low (2.0%). 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

5
successive plantings in your 253-day season

Sow every 6.9 weeks. Last sowing by Aug 29 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
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 1.5" 0" โ„๏ธ Dormant
Feb โ€” 2" 0" โ„๏ธ Dormant
Mar 2.2" 4.3" 0" โœ… Rainfall sufficient
Apr 2.2" 6.5" 0" โœ… Rainfall sufficient
May 2.2" 11.2" 0" โœ… Rainfall sufficient
Jun 2.2" 11.5" 0" โœ… Rainfall sufficient
Jul 2.2" 7.4" 0" โœ… Rainfall sufficient
Aug 2.2" 7.5" 0" โœ… Rainfall sufficient
Sep 2.2" 5.5" 0" โœ… Rainfall sufficient
Oct 2.2" 4.4" 0" โœ… Rainfall sufficient
Nov 2.2" 2.5" 0" โœ… Rainfall sufficient
Dec โ€” 1.9" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Rusk County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 4,427 GDD Excellent fit

Catnip Planting Timeline โ€” Rusk County, TX

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors March 16 Mar 16 โ€“ Mar 30
Harvest May 18 May 18 โ€“ Jul 20

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“80 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

253 days in Rusk County

Growing Tips for Catnip in Rusk County

Direct sow Catnip outdoors after March 09 in Rusk County when soil has warmed and frost danger has passed.

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

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 Rusk County, TX?

Rusk County is in Zone 8a with an average last frost of March 9. Plan your Catnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Rusk County, TX?

Rusk County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 9 and first fall frost is November 17.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Rusk County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Rusk County, TX. Local conditions may vary. Last updated: April 2026.