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When to plant Gladiolus in Cleburne County, AL

In Zone 8a (Cleburne County), direct-sow Gladiolus between April 1 and April 22 for spring, after the April 1 last-frost mark.

When to Plant Gladiolus in Cleburne County, AL

Cleburne County, Alabama Zone 8a June

Your June game plan for Cleburne County, Alabama

Here's what deserves your attention in Cleburne County, Alabama this month. Everything below is tailored to Zone 8a and timed around your local frost dates.

Avg. last frost April 1
Avg. first frost November 1
Soil temp (4") 80°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. It's harvest week for gladiolus

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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.

Cleburne County, Alabama is in USDA Zone 8a. The average last spring frost is April 1 and the first fall frost is November 1, giving you a growing season of approximately 214 days.

At an elevation of 207 feet, Cleburne County receives approximately 57.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Gladiolus during the growing season. Clay soil retains moisture well for Gladiolus, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Gladiolus root diseases.

Bulb Blooms in Summer Pollinator-friendly Good for cutting
Cleburne County, AL (Zone 8a) Long season
214 days
Last Spring Frost April 1
214 growing days
First Fall Frost November 1

Cleburne County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Gladiolus Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Mar 24 🌸 Bloom: Jun 2 – Nov 3
Recommended (50%) ✗ May not fit
Transplant: Apr 1 🌸 Bloom: Jun 10 – Nov 11
Safe Start (90%) ✗ May not fit
Transplant: Apr 18 🌸 Bloom: Jun 27 – Nov 28

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 Cleburne County

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

Soil pH

Your soil pH (5.5–6.6) overlaps with Gladiolus's range (6.0–6.5), though not a perfect match.

Soil Texture

The clay loam soil in Cleburne County is excellent for Gladiolus — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Gladiolus.

How to Plant Gladiolus

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

Succession Planting Gladiolus

3
successive plantings in your 214-day season

Sow every 8 weeks. Last sowing by Jul 24 to harvest before frost.

Gladiolus Water Budget

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

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 4.9" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 6.1" 0" ❄️ Dormant
Apr 4.3" 4.3" 0" ✅ Rainfall sufficient
May 4.3" 4.8" 0" ✅ Rainfall sufficient
Jun 4.3" 5.9" 0" ✅ Rainfall sufficient
Jul 4.3" 5.6" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.9" 0.4" 💧 Light watering
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4.3" 4.4" 0" ✅ Rainfall sufficient
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Cleburne 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 ~1,551 GDD — county provides 3,905 GDD Excellent fit

Gladiolus Planting Timeline — Cleburne County, AL

Gladiolus Planting Calendar

Activity When Date Range
Transplant Outdoors April 1 Apr 1 – Apr 15
Direct Sow April 1 Apr 1 – Apr 22
Bloom June 10 Jun 10 – Nov 11

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6–6.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

214 days in Cleburne County

Growing Tips for Gladiolus in Cleburne County

Direct sow Gladiolus outdoors after April 01 in Cleburne County when soil has warmed and frost danger has passed.

With Cleburne County's clay soil (26% clay), work in 3-4 inches of compost before planting Gladiolus. Avoid tilling when soil is wet to prevent compaction.

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 Cleburne County, AL?

Cleburne County is in Zone 8a with an average last frost of April 1. Plan your Gladiolus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cleburne County, AL?

Cleburne County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is April 1 and first fall frost is November 1.

When should I plant Gladiolus in Cleburne County, AL?

In Cleburne County, AL, plant Gladiolus after the last frost (around April 1) and before the first frost (around November 1). Best results when soil holds above 50°F.

What growing zone is Cleburne County, AL for Gladiolus?

Cleburne County sits in USDA Zone 8a. Gladiolus grows reliably in zones 3a through 10b, so it's a good fit here.

Can Gladiolus grow in Cleburne County's climate?

Yes — Gladiolus grows well in Cleburne County's temperate climate. Cleburne County averages a 214-day frost-free season, with last frost around April 1 and first frost around November 1.

🌱

Your Cleburne County Garden Planner — Free

A 22-page printable planner built for Cleburne 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 Cleburne County, AL. 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.