Do you need to grow petunias in Oregon , but do n’t get laid when to plant them ?
Planting petunias is not as easy as it seems .
Here ’s why :

So if you plant them outside too too soon in the spring they will die . And if you found them too of late , your petunias wo n’t produce a bloom .
Today , I ’m go to learn you the ideal fourth dimension to plant genus Petunia in Oregon :
When to Plant Petunias in Oregon
As you may have already guessed , you need to pay very close care to your local weather in the spring . Specifically , you are going to postulate to determine when the last frost occurs .
In general , when there has n’t been a frost for two workweek , you are SAFE to plant your Petunia outside in Oregon !
For your reference point , I have created this mesa for ordinary Robert Lee Frost dates for most major cities in Oregon . If your city is not listed below you could find its Last & First Frost DatesHERE .

Oregon Last & First Frost Dates
alas , Mother Nature plays savage tricks on us every class .
It should be note that the above dates are just average .
There are years when the last Robert Lee Frost comesMUCHlater . Sometimes , the last hoar chance much earlier and you may get your Petunia planted outside in Oregon much quicker .

Like I said before , you need to be very diligent in checking your local weather .
So what happens if a Robert Lee Frost fare AFTER you plant your petunia ?
When you roll in the hay a frost is coming you need to take action .
Also , check that not to plant your petunia in your garden too lately .
When Should You Start Your Petunias Seeds Indoors?
reckon on the type of genus Petunia , it take roughly 70 - 80 day ( 10 to 12 week ) to grow genus Petunia from source indoors and then transplant them to your garden . And then another 6 - 8 hebdomad to flower !
For aspecific datethat you should startle petunias seed indoors you should :
Not only this , but I recommend again pay closemouthed attention to your local weather report .
It should also be take note that the adept proficiency for bringing your petunias plants outside is to introduce them ( in their wad ) alfresco for an minute . And then increase the amount of prison term they spend outside each sidereal day by an hour until they have been outside for 8 hours .
This will “ harden ” your petunias works , increasing its opportunity of fighting off disease , insects , droughts , and wet circumstance .
If you require to learnWHENto plantANYFlower in Oregon , head over toHEREand just case in the flower you want to raise .