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When to plant Tomatillo in Cullman County, AL

In Cullman County, plant Tomatillo in spring between April 4 and April 25, once soil temps hold above 50°F. Cullman County's last frost averages March 28, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between and — roughly 60–85 days before the first frost on November 2.

When to Plant Tomatillo in Cullman County, AL

Cullman County, Alabama Zone 8a July

What to do in July

Each item below is timed to Cullman County, Alabama's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 28
Avg. first frost November 2
Soil temp (4") 86°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Collect tomatillo at their peak

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

Coming up in August — start thinking about
  • First harvests: tomatillo

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Tomatillos are a Mexican staple that produces tart, green fruits enclosed in papery husks. They are essential for salsa verde and green sauces.

Cullman County, Alabama is in USDA Zone 8a. The average last spring frost is March 28 and the first fall frost is November 2, giving you a growing season of approximately 219 days.

At an elevation of 347 feet, Cullman County receives approximately 53.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Tomatillo during the growing season. Clay soil retains moisture well for Tomatillo, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Tomatillo root diseases.

Cullman County, AL (Zone 8a) Long season
219 days
Last Spring Frost March 28
219 growing days
First Fall Frost November 2

Cullman County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.8

Drainage

Well Drained

Tomatillo Planting Risk Windows

Early Start (70% safe) ✓ Fits season (73 days to spare)
Start indoors: Jan 31 Transplant: Apr 4 🍅 Harvest: Jun 6 – Aug 15
Recommended (50%) ✓ Fits season (72 days to spare)
Start indoors: Feb 7 Transplant: Apr 11 🍅 Harvest: Jun 13 – Aug 22
Safe Start (90%) ✓ Fits season (70 days to spare)
Start indoors: Mar 1 Transplant: May 3 🍅 Harvest: Jul 5 – Sep 13

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 Cullman County

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

Soil pH

Your soil pH (5.4–6.8) overlaps with Tomatillo's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Tomatillo.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Tomatillo.

How to Plant Tomatillo

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Tomatillo

4
successive plantings in your 219-day season

Sow every 6.9 weeks. Last sowing by Aug 09 to harvest before frost.

Tomatillo Water Budget

Plant needs
1.1″/week
Rainfall provides
1.0″/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 Tomatillo

Tomatillo needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Tomatillo Needs Rainfall You Supplement Action
Jan 4" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 4.8" 5.3" 0" ✅ Rainfall sufficient
Apr 4.8" 4.4" 0.4" 💧 Light watering
May 4.8" 4.3" 0.5" 💧 Light watering
Jun 4.8" 4.8" 0" ✅ Rainfall sufficient
Jul 4.8" 5.2" 0" ✅ Rainfall sufficient
Aug 4.8" 5.4" 0" ✅ Rainfall sufficient
Sep 4.8" 4" 0.8" 💧 Light watering
Oct 4.8" 3.3" 1.5" 💧 Light watering
Nov 4.8" 4.4" 0.4" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

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

Tomatillo 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.

Tomatillo needs ~1,323 GDD — county provides 3,996 GDD Excellent fit

Tomatillo Planting Timeline — Cullman County, AL

Tomatillo Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 – Feb 21
Transplant Outdoors April 11 Apr 11 – Apr 25
Direct Sow April 4 Apr 4 – Apr 25
Harvest June 13 Jun 13 – Aug 22

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–85 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

219 days in Cullman County

Growing Tips for Tomatillo in Cullman County

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

With Cullman County's clay soil (30% clay), work in 3-4 inches of compost before planting Tomatillo. Avoid tilling when soil is wet to prevent compaction.

Common pests for Tomatillo in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 6-8 weeks before last frost. Plant at least two plants for cross-pollination. Harvest when fruits fill the husk and it begins to split.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Dill

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Tomatillo in Cullman County, AL?

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

What planting zone is Cullman County, AL?

Cullman County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 28 and first fall frost is November 2.

When should I plant Tomatillo in Cullman County, AL?

In Cullman County, AL, plant Tomatillo after the last frost (around March 28) and before the first frost (around November 2). Best results when soil holds above 50°F.

What growing zone is Cullman County, AL for Tomatillo?

Cullman County sits in USDA Zone 8a. Tomatillo grows reliably in zones 4a through 11b, so it's a good fit here.

Can Tomatillo grow in Cullman County's climate?

Yes — Tomatillo grows well in Cullman County's temperate climate. Cullman County averages a 219-day frost-free season, with last frost around March 28 and first frost around November 2.

🌱

Your Cullman County Garden Planner — Free

A 22-page printable planner built for Cullman 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 Cullman 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.