Zone 4 · Fruit Growing Guide

When to Plant Artichoke
in Zone 4

A dramatic, architectural perennial that produces edible flower buds. In warm zones it's a long-lived perennial — cut back after harvest and it regrows. In colder zones, treat as an annual.

Plant outdoors
May 20 – Jun 10
Start indoors
Mar 15 – Apr 1
Last Frost
~May 1
Days to harvest
85–100 days
Difficulty
Medium
Start indoors — Zone 4
Harvest window: Aug – Sep

Planting Calendar

In Zone 4, Artichoke should be planted outdoors May 20 – Jun 10, after the average last frost date of approximately May 1. Start seeds indoors around Mar 15 – Apr 1 for a head start.

Annual in Zone 4. Start indoors early. Imperial Star is best annual variety.

Care Guide

Sunlight
Full sun · 6–8 hrs/day
Watering
Regular
Spacing
48–72 inches
Soil
Rich, well-draining, deep
Days to maturity
85–100 days
Soil pH
6.0–7.0
plant tip · Zone 4

Annual in Zone 4. Start indoors early. Imperial Star is best annual variety.

Feeding Schedule

How often
monthly
Feed type
high nitrogen
Key timing
throughout growing season

Heavy feeder. Monthly nitrogen-rich feed during the growing season. Mulch well — artichokes are perennials that benefit from rich soil year after year.

Companion Planting for Artichoke

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

Grows well with
  • Sunflowers
  • Tarragon
  • Peas
Keep away from
  • Tomatoes
  • Fennel

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Common questions

In Zone 4, start artichoke seeds indoors around Mar 15 – Apr 1, then transplant outdoors May 20 – Jun 10 after your last frost around May 1. Annual in Zone 4. Start indoors early. Imperial Star is best annual variety.
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 artichoke include Sunflowers, Tarragon, Peas. Avoid planting near Tomatoes, Fennel, which can compete for nutrients or attract pests.
Artichoke typically takes 85–100 days from transplant or direct sow to harvest in Zone 4. Expected harvest window: Aug – Sep.

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Artichoke in other zones
Crop Guides