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When to plant Marigolds in Cleburne County, AL

Aim to plant Marigolds in Cleburne County on or after March 25; the window stays open through April 15. Cleburne County's 214-day frost-free season gives you enough for a full main crop and a short fall succession.

When to Plant Marigolds in Cleburne County, AL

Cleburne County, Alabama Zone 8a July

July in the garden — Cleburne County, Alabama

We've pulled the most time-sensitive tasks for Cleburne County, Alabama this July and put them front and centre. Tackle them in order.

Avg. last frost April 1
Avg. first frost November 1
Soil temp (4") 85°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Collect marigolds at their peak

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

August will be here before you know it — start on
  • First harvests: marigolds

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Marigolds (Tagetes patula) are warm-season annuals beloved for their cheerful orange, yellow, and red blooms — and for their well-documented ability to repel pest nematodes in vegetable beds. Easy from seed, drought-tolerant once established, and bloom from early summer until the first hard frost.

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 Marigolds during the growing season. Clay soil retains moisture well for Marigolds, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Marigolds root diseases.

Annual Blooms in Multi-season Pollinator-friendly Deer-resistant Good for cutting Fragrant
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

Marigolds Planting Risk Windows

Early Start (70% safe) ✓ Fits season (41 days to spare)
Start indoors: Feb 10 Transplant: Mar 17 🌸 Bloom: May 12 – Sep 15
Recommended (50%) ✓ Fits season (39 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🌸 Bloom: May 20 – Sep 23
Safe Start (90%) ✓ Fits season (42 days to spare)
Start indoors: Mar 7 Transplant: Apr 11 🌸 Bloom: Jun 6 – Oct 10

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 Marigolds's growing requirements.

Soil pH

Your soil pH (5.5–6.6) overlaps with Marigolds's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Marigolds

0.3"
Planting Depth
10"
Between Plants
12"
Between Rows

Succession Planting Marigolds

5
successive plantings in your 214-day season

Sow every 5.7 weeks. Last sowing by Aug 23 to harvest before frost.

Marigolds Water Budget

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

Monthly Watering Guide for Marigolds

Marigolds needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Marigolds Needs Rainfall You Supplement Action
Jan 4.9" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 6.1" 0" ❄️ Dormant
Apr 2.2" 4.3" 0" ✅ Rainfall sufficient
May 2.2" 4.8" 0" ✅ Rainfall sufficient
Jun 2.2" 5.9" 0" ✅ Rainfall sufficient
Jul 2.2" 5.6" 0" ✅ Rainfall sufficient
Aug 2.2" 5.5" 0" ✅ Rainfall sufficient
Sep 2.2" 3.9" 0" ✅ Rainfall sufficient
Oct 2.2" 3.8" 0" ✅ Rainfall sufficient
Nov 2.2" 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.

Marigolds 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.

Marigolds needs ~1,095 GDD — county provides 3,905 GDD Excellent fit

Marigolds Planting Timeline — Cleburne County, AL

Marigolds Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 25 Mar 25 – Apr 15
Bloom May 20 May 20 – Sep 23

Plant 0.3" deep · 10" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

214 days in Cleburne County

Growing Tips for Marigolds in Cleburne County

Direct sow Marigolds 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 Marigolds. Avoid tilling when soil is wet to prevent compaction.

Common pests for Marigolds in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

With 58" of annual rainfall in Cleburne County, ensure good drainage for Marigolds — excess moisture can promote root rot and fungal diseases.

General growing tips

Direct-sow after last frost or start indoors 4-6 weeks earlier. Deadhead spent blooms to keep new flowers coming. French marigolds (T. patula) are the most reliable nematode repellents — plant a band around vegetable beds. Tolerate poor soil but bloom best with monthly compost.

Companion Planting

Good Companions

Avoid Planting Near

  • Beans
  • Cabbage

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Marigolds Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let flower heads dry on plant. Pull dried petals to reveal seeds.
Storage Store in envelopes; viable 3 years at 35°F, under 50% humidity.

Very easy to save. Seeds are the long, thin, dark pieces inside the dried flower head.

Frequently Asked Questions

When should I plant Marigolds in Cleburne County, AL?

Cleburne County is in Zone 8a with an average last frost of April 1. Plan your Marigolds 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 Marigolds in Cleburne County, AL?

In Cleburne County, AL, plant Marigolds 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 Marigolds?

Cleburne County sits in USDA Zone 8a. Marigolds grows reliably in zones 2a through 11b, so it's a good fit here.

Can Marigolds grow in Cleburne County's climate?

Yes — Marigolds 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: July 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.