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When to Plant Gladiolus in Crane County, TX

Crane County, Texas Zone 8a June

Top priorities for Crane County, Texas gardeners in June

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Crane County, Texas.

Avg. last frost March 20
Avg. first frost November 12
Soil temp (4") 67°F
Watering High
Pest pressure High
Daylight 14 hrs
  1. Basket week: gladiolus

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

A few tasks this June that'll pay off in July
  • First harvests: gladiolus

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Gladiolus (Gladiolus spp.) produce tall, stately spikes of trumpet-shaped blooms in a rich array of colors, making them one of the most popular cut flowers in the world. Each spike carries 12–20 florets that open in succession from bottom to top over 7–10 days. By planting corms every two weeks from last frost through early summer, gardeners create a continuous succession of fresh blooms from midsummer through fall. Corms multiply each season — a single planting becomes a growing collection over the years. Ideal for back-of- border planting, cutting gardens, and mixed summer containers.

Crane County, Texas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 12, giving you a growing season of approximately 237 days.

At an elevation of 4,486 feet, Crane County receives approximately 46.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°F, so Gladiolus may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Gladiolus will need more frequent watering and organic matter to retain nutrients.

Bulb Blooms in Summer Pollinator-friendly Good for cutting
Crane County, TX (Zone 8a) Long season
237 days
Last Spring Frost March 20
237 growing days
First Fall Frost November 12
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Crane County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.1-8.4

Drainage

Well Drained

Gladiolus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (14 days to spare)
Transplant: Mar 10 🌸 Bloom: May 19 – Oct 20
Recommended (50%) ✓ Fits season (13 days to spare)
Transplant: Mar 20 🌸 Bloom: May 29 – Oct 30
Safe Start (90%) ✓ Fits season (6 days to spare)
Transplant: Apr 13 🌸 Bloom: Jun 22 – Nov 23

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 Crane County

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

Soil pH

Your soil pH (7.1–8.4) is more alkaline than Gladiolus prefers (6.0–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Gladiolus.

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Gladiolus.

How to Plant Gladiolus

5"
Planting Depth
5"
Between Plants
12"
Between Rows

Succession Planting Gladiolus

3
successive plantings in your 237-day season

Sow every 8 weeks. Last sowing by Aug 04 to harvest before frost.

Gladiolus Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,191 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Gladiolus

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

Month Gladiolus Needs Rainfall You Supplement Action
Jan 2.9" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 4.3" 2.5" 1.8" 💧 Light watering
Apr 4.3" 1.4" 2.9" 🚿 Regular watering
May 4.3" 1.2" 3.1" 🚿 Regular watering
Jun 4.3" 1.7" 2.6" 🚿 Regular watering
Jul 4.3" 7.4" 0" ✅ Rainfall sufficient
Aug 4.3" 9.5" 0" ✅ Rainfall sufficient
Sep 4.3" 7.6" 0" ✅ Rainfall sufficient
Oct 4.3" 4.9" 0" ✅ Rainfall sufficient
Nov 4.3" 2.4" 1.9" 💧 Light watering
Dec 3.1" 0" ❄️ Dormant

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

Gladiolus 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.

Gladiolus needs ~1,998 GDD — county provides 5,569 GDD Excellent fit

Gladiolus Planting Timeline — Crane County, TX

Gladiolus Planting Calendar

Activity When Date Range
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 20 Mar 20 – Apr 10
Bloom May 29 May 29 – Oct 30

Plant 5" deep · 5" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

237 days in Crane County

Growing Tips for Gladiolus in Crane County

Direct sow Gladiolus outdoors after March 20 in Crane County when soil has warmed and frost danger has passed.

Sandy soil in Crane County dries quickly — mulch Gladiolus with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 98°F in Crane County, provide afternoon shade for Gladiolus and water deeply in the morning.

General growing tips

Plant corms 4–6 inches deep, pointed end up, as soon as soil reaches 60°F after last frost. Space 4–6 inches apart; rows 12 inches apart. Stake or grow through a support grid — tall varieties reach 4–5 feet and tip in wind. Begin succession plantings every 2 weeks through early July for continuous bloom. Water deeply once a week; mulch to conserve moisture and suppress weeds. Cut spikes for vases when the lowest floret just begins to open. After first killing frost (in cold zones), dig corms, let dry for 3–4 weeks in a ventilated spot, remove cormels, and store in mesh bags at 35–50°F. In zones 7b–8a, corms sometimes survive mild winters in ground with heavy mulch; in zones 8b+, in-ground overwintering is reliable.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Gladiolus in Crane County, TX?

Crane County is in Zone 8a with an average last frost of March 20. Plan your Gladiolus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Crane County, TX?

Crane County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 12.

🌱

Your Crane County Garden Planner — Free

A 22-page printable planner built for Crane 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 Crane 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.