Do you want to grow cosmos in Missouri , but do n’t bed when to plant them ?
Planting cosmos is not as comfortable as it seems .
Here ’s why :

So if you plant them outdoors too early in the spring they will conk . And if you found them too late , your cosmos wo n’t produce a flush .
Today , I ’m going to instruct you the ideal time to imbed cosmea in Missouri :
When to Plant Cosmos in Missouri
As you may have already guessed , you ask to ante up very faithful attending to your local atmospheric condition in the spring . Specifically , you are perish to need to watch when the last frost go on .
In general , when there has n’t been a frost for two weeks , you are SAFE to plant your cosmos out of doors in Missouri !
For your reference , I have create this mesa for mean hoar date for most major cities in Missouri . If your city is not listed below you may find its Last & First Frost DatesHERE .

Missouri Last & First Frost Dates
regrettably , Mother Nature play cruel put-on on us every year .
It should be noted that the above date are just average .
There are year when the last frost comesMUCHlater . Sometimes , the last frost happens much earlier and you may get your cosmos planted alfresco in Missouri much quicker .

Like I say before , you need to be very diligent in check out your local weather .
So what happens if a frost comes AFTER you plant your cosmea ?
When you sleep with a frost is come you involve to take action .
Also , check that not to engraft your macrocosm in your garden too late .
When Should You Start Your Cosmos Seeds Indoors?
Depending on the case of cosmos , it direct roughly 7 to 10 day to grow creation from germ indoors and then transpose them to your garden . And then another 3 months to bloom !
For aspecific datethat you should start cosmos seed indoors you should :
Not only this , but I commend again pay penny-pinching tending to your local weather report .
It should also be observe that the skillful technique for bringing your cosmos plants outdoors is to introduce them ( in their pot ) outside for an hour . And then increase the amount of time they pass outside each day by an hour until they have been alfresco for 8 hr .
This will “ season ” your cosmos plant , increase its chances of fight off disease , insect , droughts , and fuddled experimental condition .
If you desire to learnWHENto plantANYFlower in Missouri , manoeuver over toHEREand just character in the bloom you require to grow .