Do you need to grow Eupatorium coelestinum in Texas , but do n’t know when to implant them ?
Planting ageratum is not as easy as it seems .
Here ’s why :

So if you implant them alfresco too early in the spring they will die . And if you implant them too late , your Eupatorium coelestinum wo n’t create a blush .
Today , I ’m become to teach you the ideal time to plant ageratum in Texas :
When to Plant Ageratum in Texas
As you may have already guessed , you need to pay very nigh aid to your local conditions in the spring . Specifically , you are perish to need to watch when the last frost come .
In general , when there has n’t been a frost for two weeks , you are SAFE to set your ageratum outside in Texas !
For your reference , I have make this table for mean frost date for most major city in Texas . If your metropolis is not lean below you’re able to find out its Last & First Frost DatesHERE .

Texas Last & First 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 Robert Lee Frost comesMUCHlater . Sometimes , the last frost hap much earlier and you’re able to get your ageratum imbed out of doors in Texas much quicker .

Like I said before , you need to be very diligent in checking your local conditions .
So what happens if a Robert Frost comes AFTER you establish your mist-flower ?
When you know a Robert Lee Frost is come you need to take action .
Also , verify not to plant your Conoclinium coelestinum in your garden too late .
When Should You Start Your Ageratum Seeds Indoors?
reckon on the type of Eupatorium coelestinum , it drive or so 5 to 14 Clarence Day to grow mistflower from seed indoors and then graft them to your garden . And then another 60 to 70 days to blossom !
For aspecific datethat you should start ageratum seeds indoors you should :
Not only this , but I urge again paying close aid to your local weather paper .
It should also be noted that the best technique for bringing your Eupatorium coelestinum industrial plant outside is to introduce them ( in their pots ) outside for an minute . And then increase the amount of fourth dimension they spend outside each daylight by an hour until they have been outside for 8 hours .
This will “ harden ” your mistflower plant , increasing its chance of fight off diseases , insect , droughts , and wet conditions .
If you want to learnWHENto plantANYFlower in Texas , channelize over toHEREand just type in the flower you want to grow .