Can these grow in containers or must be planted?

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Still waiting for plants to die back....Some did, but not enough of them.
Going to be 78F, supposedly. I'm thinking of just digging them up and moving today regardless. I don't want to be freezing while moving plants...

 

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Ugh, gotta dig out dirt to be able to fit in the irises....Was hoping it settled enough that I could just add on top.



Ordered some beefsteak tomato seeds and cotton seeds for next year!

 

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Plucked the driveway marigold
Huh, almost no roots...yet the best growing........