Here is the BEST Time to Harvest Hyssop in New Hampshire (2023 Guide)

Are you growing hyssop in New Hampshire, but don’t know when the best time to harvest them is?

Harvesting hyssop is not as easy as it seems.

Here’s why:

  • Hyssop 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 hyssop in New Hampshire:

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

When Do I Harvest Hyssop in New Hampshire?

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

Harvest Hyssop if They Look Like This!!!

harvesting hyssop

The physical features of hyssop 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 hyssop if they have the following physical features:

  • The entire hyssop is a solid red color. If the hyssop is a lighter shade of red, it is not ready to be harvested
  • The hyssop 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 Hyssop During THIS Time of Year!!!

In general, you should harvest hyssop:

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

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

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

New Hampshire Last & First Frost Dates

new hampshire 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 hyssop are in pots, bring them inside
  • If hyssop are in the ground, cover them in burlap and hope they survive
  • Pick all hyssop. 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 New Hampshire, head over to HERE and just type in the vegetable you want to grow.

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