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Here is the BEST Time to Start Heliotrope Seeds in Wisconsin (2023 Guide)

Do you want to grow heliotrope seeds in Wisconsin, but don’t know when to start them?

Starting heliotrope seeds is not as easy as it seems.

Here’s why:

  • Heliotrope Seeds must be consistently watered, receive at least 8 hours of sunlight a day, & be kept at room temperature of at least 70 degrees Fahrenheit.

So if you don’t consistently water them they won’t germinate. If they aren’t in a room that is at least 70 degrees Fahrenheit they won’t sprout. And if it receives 8 hours of sunlight the plant itself won’t grow.

  • Because Wisconsin’s growing season is not long enough, heliotrope seeds cannot be sowed outside and should only be started indoors.

Because of this, I’m going to teach you the ideal time to start heliotrope seeds indoors in Wisconsin:

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


When to Start Heliotrope Seeds Indoors

Depending on the type of heliotrope, it takes roughly 28 to 40 days to grow heliotrope from seed indoors before you can transplant them into your garden. And it could take 100 to 120 days for your heliotrope to bloom!

The approximate date of when you should start your heliotrope seeds indoors can be found by:

  • Finding the last average frost date HERE
  • And then subtract 28 days from it

You can also find the average last frost date for most major cities in the below chart that I have created:

wisconsin frost dates

To help ensure the greatest success of your heliotrope seeds germinating you should:

  • Use a heat mat to ensure the gardening pot remains at 70 degrees Fahrenheit
  • Use a grow light to control how much light your heliotrope seeds receive
  • Water your seeds with a spray bottle to ensure your seeds are not overwatered

It should also be noted that you will not want to introduce your heliotrope plants into your garden until 2 weeks after your last frost or else your plant will potentially die or not bloom

If you want to learn WHEN to start ANY Flower Seed in Wisconsin, head over to HERE and just type in the flower you want to grow.

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