Blog

When to Plant Rue in Gonzales County, TX

Gonzales County, Texas Zone 9a May

What to do in May

A quick May briefing for Gonzales County, Texas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 28
Avg. first frost November 28
Soil temp (4") 62°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Harvest rue as they ripen

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Get ahead of June
  • First harvests: rue

Instant PDF download. No spam, unsubscribe any time.

Rue is a bitter, aromatic perennial herb with bluish-green foliage used historically in medicine and as a pest deterrent. Handle with care as its sap can cause skin irritation.

Gonzales County, Texas is in USDA Zone 9a. The average last spring frost is February 28 and the first fall frost is November 28, giving you a growing season of approximately 273 days.

At an elevation of 4,385 feet, Gonzales County receives approximately 67 inches of rainfall annually with predominantly loam soil. Summer highs average 97°F, so Rue may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Rue root diseases.

Gonzales County, TX (Zone 9a) Year-round
273 days
Last Spring Frost February 28
273 growing days
First Fall Frost November 28
Share this guide:

Gonzales County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (135 days to spare)
Transplant: Feb 22 🍅 Harvest: May 3 – Jul 5
Recommended (50%) ✓ Fits season (133 days to spare)
Transplant: Mar 7 🍅 Harvest: May 16 – Jul 18
Safe Start (90%) ✓ Fits season (124 days to spare)
Transplant: Mar 30 🍅 Harvest: Jun 8 – Aug 10

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 Gonzales County

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

Soil pH

Your soil pH (6.2–7.4) is within Rue's preferred range (6.0–7.5).

Soil Texture

The loam soil in Gonzales County is excellent for Rue — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Rue.

How to Plant Rue

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

Succession Planting Rue

4
successive plantings in your 273-day season

Sow every 8 weeks. Last sowing by Aug 30 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Rue

Rue 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 Rue Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 2.2" 2" 0.2" 💧 Light watering
Mar 2.2" 4.3" 0" ✅ Rainfall sufficient
Apr 2.2" 7.7" 0" ✅ Rainfall sufficient
May 2.2" 10.3" 0" ✅ Rainfall sufficient
Jun 2.2" 9.8" 0" ✅ Rainfall sufficient
Jul 2.2" 9" 0" ✅ Rainfall sufficient
Aug 2.2" 8.8" 0" ✅ Rainfall sufficient
Sep 2.2" 5.3" 0" ✅ Rainfall sufficient
Oct 2.2" 4.3" 0" ✅ Rainfall sufficient
Nov 2.2" 2.5" 0" ✅ Rainfall sufficient
Dec 1.6" 0" ❄️ Dormant

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

Rue 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.

Rue needs ~1,820 GDD — county provides 6,233 GDD Excellent fit

Rue Planting Timeline — Gonzales County, TX

Rue Planting Calendar

Activity When Date Range
Transplant Outdoors March 7 Mar 7 – Mar 21
Harvest May 16 May 16 – Jul 18

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 9a

📆 Growing Season

273 days in Gonzales County

Growing Tips for Rue in Gonzales County

Direct sow Rue outdoors after February 28 in Gonzales County when soil has warmed and frost danger has passed.

With summer highs reaching 97°F in Gonzales County, provide afternoon shade for Rue and water deeply in the morning.

General growing tips

Start seeds indoors or direct sow. Plant in well-drained soil. Wear gloves when handling as sap can cause phytophotodermatitis. Prune in early spring.

Companion Planting

Good Companions

Avoid Planting Near

  • Basil
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rue in Gonzales County, TX?

Gonzales County is in Zone 9a with an average last frost of February 28. Plan your Rue planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gonzales County, TX?

Gonzales County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 28 and first fall frost is November 28.

🌱

Your Gonzales County Garden Planner — Free

A 24-page printable planner built for Gonzales County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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