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Here is the BEST Time to Start Agapanthus Seeds in Illinois (2022 Guide)

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

Starting agapanthus seeds is not as easy as it seems.

Here’s why:

  • Agapanthus 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 Illinois growing season is not long enough, agapanthus 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 agapanthus seeds indoors in Illinois:

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


When to Start Agapanthus Seeds Indoors

Depending on the type of agapanthus, it takes roughly 21-28 days (3 to 4 weeks) to grow agapanthus from seed indoors before you can transplant them into your garden. And it could take 3 to 4 years for your agapanthus to bloom!

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

  • Finding the last average frost date HERE
  • And then subtract 21 days from it

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

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To help ensure the greatest success of your agapanthus 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 agapanthus 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 agapanthus 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 Illinois, head over to HERE and just type in the flower you want to grow.

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