Blog

When to Plant Geraniums in Baylor County, TX

Baylor County, Texas Zone 8a June

Your June game plan for Baylor County, Texas

Welcome to June in Zone 8a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 21
Avg. first frost November 15
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. Basket week: geraniums

    If you can't use it all right away, check the food-preservation section of your planner.

July prep starts now
  • First harvests: geraniums

Instant PDF download. No spam, unsubscribe any time.

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.

Baylor County, Texas is in USDA Zone 8a. The average last spring frost is March 21 and the first fall frost is November 15, giving you a growing season of approximately 239 days.

At an elevation of 2,365 feet, Baylor County receives approximately 56.1 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Geraniums during the growing season. 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
Baylor County, TX (Zone 8a) Long season
239 days
Last Spring Frost March 21
239 growing days
First Fall Frost November 15
Share this guide:

Baylor County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.2

Drainage

Well Drained

Geraniums Planting Risk Windows

Early Start (70% safe) ✓ Fits season (32 days to spare)
Start indoors: Jan 3 Transplant: Mar 7 🌸 Bloom: May 16 – Oct 3
Recommended (50%) ✓ Fits season (36 days to spare)
Start indoors: Jan 10 Transplant: Mar 14 🌸 Bloom: May 23 – Oct 10
Safe Start (90%) ✓ Fits season (24 days to spare)
Start indoors: Feb 2 Transplant: Apr 6 🌸 Bloom: Jun 15 – Nov 2

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 Baylor County

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

Soil pH

Your soil pH (6.6–7.2) overlaps with Geraniums's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). 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 239-day season

Sow every 8 weeks. Last sowing by Aug 07 to harvest before frost.

Geraniums Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 36 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 1.5" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 4.3" 3.3" 1" 💧 Light watering
Apr 4.3" 6.5" 0" ✅ Rainfall sufficient
May 4.3" 8.6" 0" ✅ Rainfall sufficient
Jun 4.3" 7.9" 0" ✅ Rainfall sufficient
Jul 4.3" 6.4" 0" ✅ Rainfall sufficient
Aug 4.3" 7.5" 0" ✅ Rainfall sufficient
Sep 4.3" 5.8" 0" ✅ Rainfall sufficient
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 2.1" 2.2" 🚿 Regular watering
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Baylor 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 ~1,615 GDD — county provides 4,541 GDD Excellent fit

Geraniums Planting Timeline — Baylor County, TX

Geraniums Planting Calendar

Activity When Date Range
Start Indoors January 10 Jan 10 – Jan 24
Transplant Outdoors March 14 Mar 14 – Mar 28
Bloom May 23 May 23 – Oct 10

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

Month-by-Month Timeline

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

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 8a

📆 Growing Season

239 days in Baylor County

Growing Tips for Geraniums in Baylor County

Direct sow Geraniums outdoors after March 21 in Baylor 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 Baylor County, TX?

Baylor County is in Zone 8a with an average last frost of March 21. Plan your Geraniums planting based on this frost date — see the calendar above for exact timing.

What planting zone is Baylor County, TX?

Baylor County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 21 and first fall frost is November 15.

🌱

Your Baylor County Garden Planner — Free

A 22-page printable planner built for Baylor County (Zone 8a). 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 Baylor 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.