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Here is the BEST Time for Brassica Blooms in Illinois (2023 Guide)

Are you growing brassica in Illinois, but don’t know when they’ll bloom?

Getting your Brassica to bloom is not as easy as it seems.

Here’s why:

  • Brassica have a small window when they bloom and still look great.

So if they bloom too early they may die or not last as long. And if they bloom too late they may have small blooms that don’t last long.

Today, I’m going to teach you the ideal time for brassica to bloom in Illinois:

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


When Do Brassica Bloom in Illinois?

As you may have already guessed, there are two main factors that determine when Brassica will bloom: where your Brassica are planted & weather (time).

Bloom Time Depends on Where Your Brassica Are Planted!!!

When your Brassica will bloom will depend on exactly where it is planted in your yard or garden

In general, expect the following:

  • If a brassica is planted in an area of your yard that receives full sun it will bloom around the same time every year or up to two weeks early due to warm weather and extra sunlight.
  • If a brassica is planted in an area of your yard that received partial sun it will bloom around the same time every year.
  • If a brassica is planted in an area of your yard that receives shade and is not protected from wind or rain it will bloom anywhere from 1 to 3 weeks later than its average time.

Illinois Last & First Frost Dates

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

Illinois Frost Dates

Bloom Time Depends on the weather!

In general, brassica will bloom:

  • 2 months after starting brassica from seed
  • 45 days after planting brassica in your yard

If you want to learn WHEN ANY Flower will bloom in Illinois, head over to HERE and just type in the flower you want to grow.

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