Do you want to develop hydrangea in Colorado , but do n’t know when to plant them ?
Planting hydrangea is not as leisurely as it seems .
Here ’s why :

So if you plant them outside too too soon in the fall they will die . And if you plant them too late , your hydrangea wo n’t raise a rosiness .
Today , I ’m going to teach you the idealistic time to found hydrangea in Colorado :
When to Plant Hydrangea in Colorado
As you may have already guessed , you postulate to pay very closemouthed tending to your local weather in the downfall . Specifically , you are going to need to watch when the last frost occurs .
In general , when there has n’t been a frost for two weeks , you are SAFE to plant your hydrangea alfresco in Colorado !
For your character , I have make this mesa for ordinary frost appointment for most major metropolis in Colorado . If your urban center is not listed below you’re able to find its Last & First Frost DatesHERE .

Colorado Last & First Frost Dates
regrettably , Mother Nature act as fell john on us every class .
It should be remark that the above dates are just average .
There are years when the last frost comesMUCHlater . Sometimes , the last frost happens much to begin with and you’re able to get your hydrangea planted outside in Colorado much quicker .

Like I said before , you need to be very persevering in check your local weather .
So what happen if a frost comes AFTER you implant your hydrangea ?
When you know a frost is add up you call for to take activity .
Also , verify not to embed your hydrangea in your garden too late .
When Should You Start Your Hydrangea Seeds Indoors?
Depending on the type of hydrangea , it takes roughly 14 days to grow hydrangea from seed indoors and then transplant them to your garden . And then another 1 class to bloom !
For aspecific datethat you should start hydrangea seeds indoors you should :
Not only this , but I commend again paying near attention to your local weather report .
It should also be take note that the best proficiency for bring your hydrangea industrial plant outside is to infix them ( in their pots ) outside for an 60 minutes . And then increase the amount of clock time they spend outside each daytime by an hr until they have been outside for 8 hours .
This will “ harden ” your hydrangea plant , increasing its chances of crusade off disease , insects , droughts , and wet consideration .
If you want to learnWHENto plantANYFlower in Colorado , channelise over toHEREand just character in the flush you need to uprise .