Are you growing cauliflower in Illinois, but don’t know when the best time to harvest them is?
Harvesting cauliflower is not as easy as it seems.
- Cauliflower 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 cauliflower in Illinois:
- To Learn More About HOW to Grow Cauliflower, Check Out This GUIDE!
When Do I Harvest Cauliflower in Illinois?
As you may have already guessed, there are two main factors that determine when you should harvest your cauliflower: the physical features of the cauliflower & weather (time).
Harvest Cauliflower if They Look Like This!!!
The physical features of cauliflower 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 cauliflower if they have the following physical features:
- The entire cauliflower is a solid red color. If the cauliflower is a lighter shade of red, it is not ready to be harvested
- The cauliflower 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 Cauliflower During THIS Time of Year!!!
In general, you should harvest cauliflower:
- 65 to 85 days after starting cauliflower from seed
- 40 to 50 days after planting cauliflower in your garden
- 20 to 30 days after cauliflower first appear
And no matter what, you should ALWAYS harvest your cauliflower before the first frost of the year. Frost will immediately kill your cauliflower plant and make your cauliflower inedible.
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 Last & First 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 cauliflower are in pots, bring them inside
- If cauliflower are in the ground, cover them in burlap and hope they survive
- Pick all cauliflower. 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 Illinois, head over to HERE and just type in the vegetable you want to grow.