Can these grow in containers or must be planted?

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Well, oops.
Two days of heat before I realized the poo cap was preventing water getting down. I may of killed some of them...


gladiolus


repotted again!

 

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More gladiolus are getting ready to flower.

Newer mix of wildflowers in this pot. Spreading them willy nilly equals few grew. Dumped 2 pounds last year, almost nothing grew that year. Some this year. Best in a container.



Candy lily from nursery around the corner.


phlox dh bought as bulbs. Took forever to get to flowering!

 

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Idk if this was posted here or not. It hated morning sun, now happy pretending to be a hosta. New, much larger pot, too. Looking great.