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When to Plant Tomatillo in Bay County, FL

Bay County, Florida Zone 9b May

May in Bay County, Florida — your action list

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Bay County, Florida.

Avg. last frost March 5
Avg. first frost November 20
Soil temp (4") 73°F
Watering Moderate
Pest pressure High
Daylight 13.5 hrs
  1. Basket week: tomatillo

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Looking ahead to June
  • 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.

Bay County, Florida is in USDA Zone 9b. The average last spring frost is March 5 and the first fall frost is November 20, giving you a growing season of approximately 260 days.

At an elevation of 388 feet, Bay County receives approximately 50.1 inches of rainfall annually with predominantly sand soil. Summer highs average 90°F, providing good warmth for Tomatillo during the growing season. Sandy soil warms quickly in spring — great for early planting — but Tomatillo will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Tomatillo root diseases.

Bay County, FL (Zone 9b) Long season
260 days
Last Spring Frost March 5
260 growing days
First Fall Frost November 20

Bay County Soil Profile

Soil Type

Sand

Soil pH

5.2-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (122 days to spare)
Start indoors: Jan 12 Transplant: Mar 2 🍅 Harvest: May 4 – Jul 13
Recommended (50%) ✓ Fits season (120 days to spare)
Start indoors: Jan 22 Transplant: Mar 12 🍅 Harvest: May 14 – Jul 23
Safe Start (90%) ✓ Fits season (120 days to spare)
Start indoors: Feb 13 Transplant: Apr 3 🍅 Harvest: Jun 5 – Aug 14

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 Bay County

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

Soil pH

Your soil pH (5.2–6.0) is more acidic than Tomatillo prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Tomatillo.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Tomatillo.

How to Plant Tomatillo

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

Succession Planting Tomatillo

5
successive plantings in your 260-day season

Sow every 6.9 weeks. Last sowing by Aug 27 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 1,724 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 2.7" 0" ❄️ Dormant
Feb 2.8" 0" ❄️ Dormant
Mar 4.8" 2.6" 2.2" 💧 Light watering
Apr 4.8" 2.3" 2.5" 🚿 Regular watering
May 4.8" 3.2" 1.6" 💧 Light watering
Jun 4.8" 6.7" 0" ✅ Rainfall sufficient
Jul 4.8" 7.3" 0" ✅ Rainfall sufficient
Aug 4.8" 6.8" 0" ✅ Rainfall sufficient
Sep 4.8" 6.6" 0" ✅ Rainfall sufficient
Oct 4.8" 4.7" 0.1" 💧 Light watering
Nov 4.8" 2.2" 2.6" 🚿 Regular watering
Dec 2.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Bay 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 ~1,269 GDD — county provides 4,550 GDD Excellent fit

Tomatillo Planting Timeline — Bay County, FL

Tomatillo Planting Calendar

Activity When Date Range
Start Indoors January 22 Jan 22 – Feb 5
Transplant Outdoors March 12 Mar 12 – Mar 26
Direct Sow March 5 Mar 5 – Mar 26
Harvest May 14 May 14 – Jul 23

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · 2-3 times/week

📅 Days to Maturity

60–85 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

260 days in Bay County

Growing Tips for Tomatillo in Bay County

Direct sow Tomatillo outdoors after March 05 in Bay County when soil has warmed and frost danger has passed.

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

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 Bay County, FL?

Bay County is in Zone 9b with an average last frost of March 5. Plan your Tomatillo planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bay County, FL?

Bay County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is March 5 and first fall frost is November 20.

🌱

Your Bay County Garden Planner — Free

A 24-page printable planner built for Bay County (Zone 9b). 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 Bay County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

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