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Here is the BEST Time to Start Crown Imperial Seeds in Washington (2022 Guide)

Do you want to grow crown imperial seeds in Washington, but don’t know when to start them?

Starting crown imperial seeds is not as easy as it seems.

Here’s why:

  • Crown Imperial 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 Washington’s growing season is not long enough, crown imperial 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 crown imperial seeds indoors in Washington:

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


When to Start Crown Imperial Seeds Indoors

Depending on the type of crown imperial, it takes roughly 42-70 days (6 to 10 weeks) to grow crown imperial from seed indoors before you can transplant them into your garden. And it could take 8 to 11 weeks for your crown imperial to bloom!

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

  • Finding the first average frost date HERE
  • And then subtract 42 days from it

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

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