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When to Plant Tomatillo in Otoe County, NE

Otoe County, Nebraska Zone 5a April

April in Otoe County, Nebraska — your action list

Your Otoe County, Nebraska garden is entering a new phase. Here's what's on the schedule for April and why each task matters now.

Avg. last frost April 24
Avg. first frost October 10
Soil temp (4") 45°F
Watering Moderate
Pest pressure Low
Daylight 13.1 hrs
To set up a strong May, finish these tasks
  • Transplants going out: tomatillo
  • Direct-sowing: 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.

Otoe County, Nebraska is in USDA Zone 5a. The average last spring frost is April 24 and the first fall frost is October 10, giving you a growing season of approximately 169 days.

At an elevation of 550 feet, Otoe County receives approximately 27.1 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Tomatillo to ensure they mature before fall.

Otoe County, NE (Zone 5a) Moderate season
169 days
Last Spring Frost April 24
169 growing days
First Fall Frost October 10
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Otoe County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (18 days to spare)
Start indoors: Feb 24 Transplant: May 5 🍅 Harvest: Jul 7 – Sep 15
Recommended (50%) ✓ Fits season (22 days to spare)
Start indoors: Feb 27 Transplant: May 8 🍅 Harvest: Jul 10 – Sep 18
Safe Start (90%) ✓ Fits season (17 days to spare)
Start indoors: Mar 16 Transplant: May 25 🍅 Harvest: Jul 27 – Oct 5

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 Otoe County

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

Soil pH

Your soil pH (6.5–7.3) overlaps with Tomatillo's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (4.2%) — Tomatillo will thrive.

How to Plant Tomatillo

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

Succession Planting Tomatillo

3
successive plantings in your 169-day season

Sow every 6.9 weeks. Last sowing by Jul 17 to harvest before frost.

Plant Water Budget

Plant needs
1.1″/week
Rainfall provides
0.7″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 642 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 0.7" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 4.8" 2.8" 2" 💧 Light watering
May 4.8" 3.5" 1.3" 💧 Light watering
Jun 4.8" 4.7" 0.1" 💧 Light watering
Jul 4.8" 3.7" 1.1" 💧 Light watering
Aug 4.8" 3" 1.8" 💧 Light watering
Sep 4.8" 2.6" 2.2" 💧 Light watering
Oct 4.8" 1.6" 3.2" 🚿 Regular watering
Nov 1" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Otoe 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 ~888 GDD — county provides 2,070 GDD Excellent fit

Tomatillo Planting Timeline — Otoe County, NE

Tomatillo Planting Calendar

Activity When Date Range
Start Indoors February 27 Feb 27 – Mar 13
Transplant Outdoors May 8 May 8 – May 22
Direct Sow May 1 May 1 – May 22
Harvest July 10 Jul 10 – Sep 18

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April
May Transplant Outdoors Direct Sow
June
July Harvest
August Harvest
September Harvest
October
November
December
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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 5a

📆 Growing Season

169 days in Otoe County

Growing Tips for Tomatillo in Otoe County

Direct sow Tomatillo outdoors after April 24 in Otoe 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 →

Frequently Asked Questions

When should I plant Tomatillo in Otoe County, NE?

Otoe County is in Zone 5a with an average last frost of April 24. Plan your Tomatillo planting based on this frost date — see the calendar above for exact timing.

What planting zone is Otoe County, NE?

Otoe County, Nebraska is in USDA Hardiness Zone 5a. The average last spring frost is April 24 and first fall frost is October 10.

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Your Otoe County Garden Planner — Free

A 24-page printable planner built for Otoe County (Zone 5a). 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 Otoe County, NE. Local conditions may vary. Last updated: April 2026.

Sources & credits

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