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When to Plant Hydrangeas in Montague County, TX

Montague County, Texas Zone 8a June

Your June planting checklist for Montague County, Texas

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

Avg. last frost March 28
Avg. first frost November 6
Soil temp (4") 67°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. Start harvesting hydrangeas

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

Coming up in July — start thinking about
  • First harvests: hydrangeas

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Hydrangeas (Hydrangea spp.) are among the most spectacular summer-blooming shrubs, with large mophead, lacecap, or panicle flower clusters lasting weeks in the garden and drying beautifully for arrangements. Native to Asia and North America alike, the genus spans several garden species with different hardiness and blooming habits. Panicle hydrangeas (H. paniculata, e.g., Limelight) are the most cold-hardy (Zone 3) and most reliable bloomers; smooth hydrangeas (H. arborescens, e.g., Annabelle) are equally tough. Bigleaf hydrangeas (H. macrophylla) are prized for blue/pink color-shifting blooms but require reliable snow cover or winter protection in Zones 5–6. Flower color in macrophylla types is determined by soil pH (acidic = blue, alkaline = pink).

Montague County, Texas is in USDA Zone 8a. The average last spring frost is March 28 and the first fall frost is November 6, giving you a growing season of approximately 223 days.

At an elevation of 4,867 feet, Montague County receives approximately 58.4 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Hydrangeas during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Hydrangeas root diseases.

Perennial Blooms in Summer Pollinator-friendly Good for cutting
Montague County, TX (Zone 8a) Long season
223 days
Last Spring Frost March 28
223 growing days
First Fall Frost November 6

Montague County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.3

Drainage

Well Drained

Hydrangeas Planting Risk Windows

Early Start (70% safe) ✓ Fits season (27 days to spare)
Start indoors: Jan 16 Transplant: Mar 20 🌸 Bloom: May 29 – Oct 2
Recommended (50%) ✓ Fits season (27 days to spare)
Start indoors: Jan 24 Transplant: Mar 28 🌸 Bloom: Jun 6 – Oct 10
Safe Start (90%) ✓ Fits season (25 days to spare)
Start indoors: Feb 12 Transplant: Apr 16 🌸 Bloom: Jun 25 – Oct 29

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 Montague County

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

Soil pH

Your soil pH (6.2–7.3) is more alkaline than Hydrangeas prefers (5.5–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is low (2.0%). Add 2-3 inches of compost before planting Hydrangeas.

How to Plant Hydrangeas

1"
Planting Depth
48"
Between Plants
60"
Between Rows

Hydrangeas Water Budget

Plant needs
1.0″/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 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Hydrangeas

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

Month Hydrangeas Needs Rainfall You Supplement Action
Jan 1.2" 0" ❄️ Dormant
Feb 2.1" 0" ❄️ Dormant
Mar 4.3" 3.3" 1" 💧 Light watering
Apr 4.3" 5.6" 0" ✅ Rainfall sufficient
May 4.3" 8.5" 0" ✅ Rainfall sufficient
Jun 4.3" 10.5" 0" ✅ Rainfall sufficient
Jul 4.3" 8" 0" ✅ Rainfall sufficient
Aug 4.3" 6.6" 0" ✅ Rainfall sufficient
Sep 4.3" 5.8" 0" ✅ Rainfall sufficient
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 2.2" 2.1" 💧 Light watering
Dec 1.3" 0" ❄️ Dormant

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

Hydrangeas 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.

Hydrangeas needs ~2,460 GDD — county provides 4,571 GDD Excellent fit

Hydrangeas Planting Timeline — Montague County, TX

Hydrangeas Planting Calendar

Activity When Date Range
Start Indoors January 24 Jan 24 – Feb 7
Transplant Outdoors March 28 Mar 28 – Apr 11
Bloom June 6 Jun 6 – Oct 10

Plant 1" deep · 48" apart · Rows 60" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

90–150 days

🧪 Soil pH

Needs 5.5–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

223 days in Montague County

Growing Tips for Hydrangeas in Montague County

Direct sow Hydrangeas outdoors after March 28 in Montague County when soil has warmed and frost danger has passed.

General growing tips

Plant container-grown specimens in spring or fall, spacing at least 3–5 feet apart to allow for mature shrub spread. Most hydrangeas prefer morning sun with afternoon shade, especially in Zones 7+. Keep consistently moist — the name derives from the Greek for water vessel. Prune panicle and smooth types in late winter/early spring (they bloom on new wood). Prune bigleaf types only lightly after bloom; cutting stems in fall removes next year's buds. In Zone 5–6, protect bigleaf varieties with burlap or wire cages filled with leaves over winter. Fall planting (Zones 5+) gives excellent root establishment before summer heat. Year 2+ plants reach full size and bloom.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Hydrangeas in Montague County, TX?

Montague County is in Zone 8a with an average last frost of March 28. Plan your Hydrangeas planting based on this frost date — see the calendar above for exact timing.

What planting zone is Montague County, TX?

Montague County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 28 and first fall frost is November 6.

🌱

Your Montague County Garden Planner — Free

A 22-page printable planner built for Montague 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.

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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 Montague 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.