Can blackberry lilies by grown in a container?
This plant may not be the best choice for a container plant.
A relative to the iris, the rhizomes can grow to quickly in a pot and require frequent repotting.
It also may be sensitive to watering issues in a pot.
If you only have space for growing in pots and really want to try a Leopard Lily, you certainly can give it a try!
Here is a link with more information.