Do you need to spring up zinnia in Pennsylvania , but do n’t roll in the hay when to plant them ?
Planting zinnia is not as easy as it seems .
Here ’s why :

So if you implant them outside too too soon in the outflow they will die . And if you plant them too late , your old maid flower wo n’t grow a bloom .
Today , I ’m belong to teach you the ideal time to found old maid flower in Pennsylvania :
When to Plant Zinnia in Pennsylvania
As you may have already guessed , you require to pay very skinny attention to your local weather in the saltation . Specifically , you are break to require to watch when the last frost occurs .
In cosmopolitan , when there has n’t been a frost for two weeks , you are SAFE to plant your zinnia outside in Pennsylvania !
For your cite , I have created this board for mediocre frost dates for most major city in Pennsylvania . If your city is not listed below you’re able to find its Last & First Frost DatesHERE .

Pennsylvania Last & First Frost Dates
Unfortunately , Mother Nature plays cruel joke on us every year .
It should be noted that the above dates are just averages .
There are years when the last Robert Lee Frost comesMUCHlater . Sometimes , the last Robert Frost happens much earlier and you may get your zinnia found outdoors in Pennsylvania much quicker .

Like I said before , you need to be very diligent in checking your local weather .
So what pass off if a rime add up AFTER you implant your zinnia ?
When you know a frost is derive you require to take action .
Also , verify not to plant your old maid flower in your garden too deep .
When Should You Start Your Zinnia Seeds Indoors?
Depending on the type of old maid , it takes roughly 5 to 24 mean solar day to grow old maid from seed indoors and then transplant them to your garden . And then another 2 calendar month to bloom !
For aspecific datethat you should begin old maid flower seeds indoors you should :
Not only this , but I commend again paying close care to your local weather report .
It should also be noted that the just proficiency for bringing your old maid plants out of doors is to put in them ( in their pots ) outside for an time of day . And then increase the amount of fourth dimension they spend outside each day by an 60 minutes until they have been alfresco for 8 60 minutes .
This will “ harden ” your zinnia flora , increasing its chances of fighting off diseases , insects , drought , and tight conditions .
If you want to learnWHENto plantANYFlower in Pennsylvania , manoeuvre over toHEREand just type in the flower you desire to grow .