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Here is the BEST Time to Plant Trachelium in Pennsylvania (2023 Guide)

Do you want to grow trachelium in Pennsylvania, but don’t know when to plant them?

Planting trachelium is not as easy as it seems.

Here’s why:

  • Trachelium are not able to survive frost or cold weather under 50 degrees Fahrenheit.

So if you plant them outside too early in the spring they will die. And if you plant them too late, your trachelium won’t produce a bloom.

Today, I’m going to teach you the ideal time to plant trachelium in Pennsylvania:

  • To Learn More About HOW to Grow Trachelium, Check Out This GUIDE!


When to Plant Trachelium in Pennsylvania

As you may have already guessed, you need to pay very close attention to your local weather in the spring. Specifically, you are going to need to watch when the last frost occurs.

In general, when there hasn’t been a frost for two weeks, you are SAFE to plant your trachelium outside in Pennsylvania!

For your reference, I have created this table for average frost dates for most major cities in Pennsylvania. If your city is not listed below you can find its Last & First Frost Dates HERE.

Pennsylvania Last & First Frost Dates

pennsylvania frost dates

Unfortunately, Mother Nature plays cruel tricks on us every year.

It should be noted that the above dates are just averages.

There are years when the last frost comes MUCH later. Sometimes, the last frost happens much earlier and you can get your trachelium planted outside in Pennsylvania much quicker.

Like I said before, you need to be very diligent in checking your local weather.

So what happens if a frost comes AFTER you plant your trachelium?

When you know a frost is coming you need to take action.

  • If trachelium are in pots, bring them inside
  • If trachelium are in the ground, cover them in burlap and hope they survive

Also, make sure not to plant your trachelium in your garden too late.

  • Planting trachelium too late will cause small blooms or even worse, no blooms.


When Should You Start Your Trachelium Seeds Indoors?

Depending on the type of trachelium, it takes roughly 15 to 20 days to grow trachelium from seed indoors and then transplant them to your garden. And then another 6 to 8 weeks to bloom!

For a specific date that you should start trachelium seeds indoors you should:

  • Find the last average frost date HERE
  • And then subtract 15 days from it

Not only this, but I recommend again paying close attention to your local weather report.

It should also be noted that the best technique for bringing your trachelium plants outside is to introduce them (in their pots) outside for an hour. And then increase the amount of time they spend outside each day by an hour until they have been outside for 8 hours.

This will “harden” your trachelium plant, increasing its chances of fighting off diseases, insects, droughts, and wet conditions.

If you want to learn WHEN to plant ANY Flower in Pennsylvania, head over to HERE and just type in the flower you want to grow.

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