Do you want to grow onion in Colorado , but do n’t have a go at it when to found them ?
Planting onions is not as light as it seems .
Here ’s why :

So if you implant them outside too early on in the spring they will cash in one’s chips . And if you implant them too late , your onions wo n’t raise a harvest before the first hoar arrives in the fall .
Today , I ’m go to learn you the idealistic meter to plant onions in Colorado :
When to Plant Onions in Colorado
As you may have already judge , you need to pay very close attention to your local weather in the spring . Specifically , you are going to need to see when the last frost occurs .
In cosmopolitan , when there has n’t been a frost for two weeks , you are SAFE to engraft your onions outside in Colorado !
For your cite , I have created this table for average frost dates for most major cities in Colorado . If your city is not listed below you could recover its Last & First Frost DatesHERE .

Colorado Last & First Frost Dates
Unfortunately , Mother Nature plays roughshod trick on us every year .
It should be observe that the above date are just averages .

There are years when the last frost comesMUCHlater . Sometimes , the last freeze encounter much earlier and you’re able to get your onions planted outside in Colorado much quicker .
Like I said before , you need to be very persevering in checking your local weather .
So what happens if a frost come AFTER you plant your onions ?
When you know a freeze is coming you need to take action .
Also , verify not to plant your Allium cepa in your garden too late .
When Should You Start Your Onions Seeds Indoors?
Depending on the case of onions , it takes roughly 60 - 70 days to produce onions from seed indoors and then transplant them to your garden .
For aspecific datethat you should pop out onions seed indoors you should :
Not only this , but I advocate again pay close tending to your local atmospheric condition report .
It should also be noted that the good proficiency for bring in your onions plant outside is to introduce them ( in their pots ) outside for an hour . And then increase the amount of time they spend outside each daytime by an hr until they have been outside for 8 hours .
This will “ hardened ” your onion plant , increasing its chances of fighting off disease , insects , droughts , and wet condition .
If you desire to learnWHENto plantANYVegetable in Colorado , head over toHEREand just character in the veg you want to grow .