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When to Plant Tomatillo in Flushing, OH

Belmont County, Ohio Zone 6b June

What to do in June

Here's what deserves your attention in Belmont County, Ohio this month. Everything below is tailored to Zone 6b and timed around your local frost dates.

Avg. last frost April 27
Avg. first frost October 23
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 14.8 hrs
  1. Sow tomatillo in trays indoors

    You're about 16 weeks out from your last frost — the perfect window to get these germinating indoors.

Looking ahead to July
  • 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.

Flushing, Ohio is in USDA Zone 6b. The average last spring frost is April 27 and the first fall frost is October 23, giving you a growing season of approximately 179 days.

At an elevation of 996 feet, Belmont County receives approximately 33.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Tomatillo during the growing season.

Flushing, OH (Zone 6b) Moderate season
179 days
Last Spring Frost April 27
179 growing days
First Fall Frost October 23

Flushing Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-6.7

Drainage

Well Drained

Tomatillo Planting Risk Windows

Early Start (70% safe) ✓ Fits season (31 days to spare)
Start indoors: Feb 25 Transplant: May 6 🍅 Harvest: Jul 8 – Sep 16
Recommended (50%) ✓ Fits season (32 days to spare)
Start indoors: Mar 2 Transplant: May 11 🍅 Harvest: Jul 13 – Sep 21
Safe Start (90%) ✓ Fits season (30 days to spare)
Start indoors: Mar 19 Transplant: May 28 🍅 Harvest: Jul 30 – Oct 8

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 Flushing

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

Soil pH

Your soil pH (5.9–6.7) overlaps with Tomatillo's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (5.0%) — Tomatillo will thrive.

How to Plant Tomatillo

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

Succession Planting Tomatillo

3
successive plantings in your 179-day season

Sow every 6.9 weeks. Last sowing by Jul 30 to harvest before frost.

Tomatillo Water Budget

Plant needs
1.1″/week
Rainfall provides
0.8″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 504 gal / 100 sq ft

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 1.3" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 4.8" 3.4" 1.4" 💧 Light watering
May 4.8" 3.8" 1" 💧 Light watering
Jun 4.8" 4.1" 0.7" 💧 Light watering
Jul 4.8" 3.8" 1" 💧 Light watering
Aug 4.8" 3.7" 1.1" 💧 Light watering
Sep 4.8" 2.9" 1.9" 💧 Light watering
Oct 4.8" 2.6" 2.2" 💧 Light watering
Nov 2.3" 0" ❄️ Dormant
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Belmont 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 ~1,214 GDD — county provides 2,998 GDD Excellent fit

Tomatillo Planting Timeline — Flushing, OH

Tomatillo Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 – Mar 16
Transplant Outdoors May 11 May 11 – May 25
Direct Sow May 4 May 4 – May 25
Harvest July 13 Jul 13 – Sep 21

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · 1-2 times/week

📅 Days to Maturity

60–85 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

179 days in Belmont County

Growing Tips for Tomatillo in Flushing

Direct sow Tomatillo outdoors after April 27 in Belmont County when soil has warmed and frost danger has passed.

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 →

🌱

Your Belmont County Garden Planner — Free

A 22-page printable planner built for Belmont County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Belmont County, OH. Local conditions may vary. Last updated: June 2026.