Zone 4 · Fruiting Veg Growing Guide

When to Plant Tomatillo
in Zone 4

Salsa verde essential. Very productive, heat-tolerant, and easier than tomatoes. Plant two for pollination — a single plant produces no fruit. The papery husk is the giveaway it's ready.

Plant outdoors
May 20 – Jun 5
Start indoors
Apr 5 – Apr 20
Last Frost
~May 1
Days to harvest
65–75 days
Difficulty
Easy
Start indoors — Zone 4
Harvest window: Aug – Sep

Planting Calendar

In Zone 4, Tomatillo should be planted outdoors May 20 – Jun 5, after the average last frost date of approximately May 1. Start seeds indoors around Apr 5 – Apr 20 for a head start.

Plant two for pollination. More heat-tolerant and productive than tomatoes in Zone 4.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Moderate
Spacing
24–36 inches
Soil
Well-draining, fertile loam
Days to maturity
65–75 days
Soil pH
6.0–6.8
plant tip · Zone 4

Plant two for pollination. More heat-tolerant and productive than tomatoes in Zone 4.

Feeding Schedule

How often
every 3 weeks
Feed type
balanced (10-10-10)
Key timing
at transplant, then when flowering

Moderate feeder. Switch to low-nitrogen feed once flowers appear to encourage fruiting.

Companion Planting for Tomatillo

What you plant next to tomatillo makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Basil
  • Marigolds
  • Carrots
Keep away from
  • Fennel
  • Brassicas
  • Corn

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Common questions

In Zone 4, start tomatillo seeds indoors around Apr 5 – Apr 20, then transplant outdoors May 20 – Jun 5 after your last frost around May 1. Plant two for pollination. More heat-tolerant and productive than tomatoes in Zone 4.
Zone 4 has an average last spring frost of approximately May 1 and a first fall frost around Oct 1. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for tomatillo include Basil, Marigolds, Carrots. Avoid planting near Fennel, Brassicas, Corn, which can compete for nutrients or attract pests.
Tomatillo typically takes 65–75 days from transplant or direct sow to harvest in Zone 4. Expected harvest window: Aug – Sep.

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Tomatillo in other zones
Crop Guides