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When to Plant Geraniums in Goliad County, TX

Goliad County, Texas Zone 9b June

June in the garden — Goliad County, Texas

Here's what deserves your attention in Goliad County, Texas this month. Everything below is tailored to Zone 9b and timed around your local frost dates.

Avg. last frost February 24
Avg. first frost December 4
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. It's harvest week for geraniums

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

July prep starts now
  • First harvests: geraniums

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Geraniums (Pelargonium × hortorum) are tender perennials grown as warm-season annuals throughout North America. Prized for their bold flower clusters, long bloom period, and tolerance of summer heat when planted in well-drained soil, they anchor window boxes, containers, and bed borders from late spring until hard frost. Zones 9b–11b can overwinter plants in the ground.

Goliad County, Texas is in USDA Zone 9b. The average last spring frost is February 24 and the first fall frost is December 4, giving you a growing season of approximately 283 days.

At an elevation of 3,928 feet, Goliad County receives approximately 62.6 inches of rainfall annually with predominantly loam soil. Summer highs average 95°F, so Geraniums may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Geraniums root diseases.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting Fragrant
Goliad County, TX (Zone 9b) Year-round
283 days
Last Spring Frost February 24
283 growing days
First Fall Frost December 4
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Goliad County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.3

Drainage

Well Drained

Geraniums Planting Risk Windows

Early Start (70% safe) ✓ Fits season (46 days to spare)
Start indoors: Dec 4 Transplant: Jan 15 🌸 Bloom: Mar 26 – Oct 8
Recommended (50%) ✓ Fits season (45 days to spare)
Start indoors: Dec 16 Transplant: Jan 27 🌸 Bloom: Apr 7 – Oct 20
Safe Start (90%) ✓ Fits season (45 days to spare)
Start indoors: Jan 2 Transplant: Feb 13 🌸 Bloom: Apr 24 – Nov 6

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 Goliad County

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

Soil pH

Your soil pH (6.3–7.3) overlaps with Geraniums's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Geraniums.

How to Plant Geraniums

0.1"
Planting Depth
12"
Between Plants
14"
Between Rows

Succession Planting Geraniums

4
successive plantings in your 283-day season

Sow every 8 weeks. Last sowing by Aug 26 to harvest before frost.

Geraniums Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 225 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Geraniums

Geraniums needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Geraniums Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 4.3" 2.2" 2.1" 💧 Light watering
Mar 4.3" 3.5" 0.8" 💧 Light watering
Apr 4.3" 6.7" 0" ✅ Rainfall sufficient
May 4.3" 9.8" 0" ✅ Rainfall sufficient
Jun 4.3" 10.6" 0" ✅ Rainfall sufficient
Jul 4.3" 8.2" 0" ✅ Rainfall sufficient
Aug 4.3" 7.6" 0" ✅ Rainfall sufficient
Sep 4.3" 5.3" 0" ✅ Rainfall sufficient
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 4.3" 1.6" 2.7" 🚿 Regular watering

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

Geraniums 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.

Geraniums needs ~1,806 GDD — county provides 6,035 GDD Excellent fit

Geraniums Planting Timeline — Goliad County, TX

Geraniums Planting Calendar

Activity When Date Range
Start Indoors December 16 Dec 16 – Dec 30
Transplant Outdoors January 27 Jan 27 – Feb 10
Bloom April 7 Apr 7 – Oct 20

Plant 0.1" deep · 12" apart · Rows 14" apart

Month-by-Month Timeline

MonthActivities
January Transplant Outdoors
February Transplant Outdoors
March
April Bloom
May Bloom
June Bloom
July Bloom
August Bloom
September Bloom
October Bloom
November
December Start Indoors
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9b

📆 Growing Season

283 days in Goliad County

Growing Tips for Geraniums in Goliad County

Direct sow Geraniums outdoors after February 24 in Goliad County when soil has warmed and frost danger has passed.

General growing tips

Start seeds indoors 10–12 weeks before last frost — germination is slow and erratic without bottom heat (70–75°F). Transplant after frost danger passes. Geraniums rarely direct-sown; cuttings or transplants are the standard. Deadhead spent umbels weekly to maintain continuous bloom. Let soil dry slightly between waterings to prevent root rot. In zones 10–11 plants may be left in ground year-round or overwintered as houseplants.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Geraniums in Goliad County, TX?

Goliad County is in Zone 9b with an average last frost of February 24. Plan your Geraniums planting based on this frost date — see the calendar above for exact timing.

What planting zone is Goliad County, TX?

Goliad County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 24 and first fall frost is December 4.

🌱

Your Goliad County Garden Planner — Free

A 22-page printable planner built for Goliad 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 Goliad County, TX. 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.