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Here is the BEST Time to Harvest Arugula in Montana (2022 Guide)

Are you growing arugula in Montana, but don’t know when the best time to harvest them is?

Harvesting arugula is not as easy as it seems.

Here’s why:

  • Arugula have a very short window when they can be harvested and still taste great.

So if you harvest them too early they may not be ready and taste bad. And if you harvest them too late they may become infected with mold, fungus, insects, etc., and become inedible.

Today, I’m going to teach you the ideal time to harvest arugula in Montana:

  • To Learn More About HOW to Grow Arugula, Check Out This GUIDE!


When Do I Harvest Arugula in Montana?

As you may have already guessed, there are two main factors that determine when you should harvest your arugula: the physical features of the arugula & weather (time).

Harvest Arugula if They Look Like This!!!

harvesting arugula

The physical features of arugula are what most gardeners commonly rely on to determine if they are ready to be picked off the plant or not.

In general, you should harvest arugula if they have the following physical features:

  • The entire arugula is a solid red color. If the arugula is a lighter shade of red, it is not ready to be harvested
  • The arugula is slightly soft. Too hard means it is not ready. Too soft means it is overripe (but still edible)
  • Easily able to be deattached from the the plant. This means it has absorbed all the nutrients it needs and is ready.

Harvest Your Arugula During THIS Time of Year!!!

In general, you should harvest arugula:

  • 65 to 85 days after starting arugula from seed
  • 40 to 50 days after planting arugula in your garden
  • 20 to 30 days after arugula first appear

And no matter what, you should ALWAYS harvest your arugula before the first frost of the year. Frost will immediately kill your arugula plant and make your arugula inedible.

For your reference, I have created this table for average frost dates for most major cities in Montana. If your city is not listed below you can find its Last & First Frost Dates HERE.

Montana Last & First Frost Dates

Montana Frost Dates

It should be noted that you should not overly rely on the first frost of the year. The average first frost of the year is only correct 30% of the time.

Instead, pay close attention to your local weather.

When you know a frost is coming you need to take action.

  • If arugula are in pots, bring them inside
  • If arugula are in the ground, cover them in burlap and hope they survive
  • Pick all arugula. If they are not ready, place them in a brown paper bag and store them for approximately 1 to 2 weeks to see if they become edible.

If you want to learn WHEN to harvest ANY Vegetable in Montana, head over to HERE and just type in the vegetable you want to grow.

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