In article .com,
marasol wrote:
I had my gardener plant perennials in my garden last week. They were
about seven. Once finished,I asked him what he did with the containers
the plants came in, he told me he had planted the flowers in theirs
containers. I always thought you needed to remove the plants from
their containers and plant them in the ground. He says no. Any
thoughts?

Unless the pots were biodegradable, he is almost certainly being a
cowboy - tell him to do the job properly.

There are perennials that will be happy planted in their pots, but
there are others that will most definitely not be. Any perennials
that are intended to spread sideways will not be, as will those
with fleshy or shallow roots. What species did he plant?

And the pots will be a menace if you ever want to divide a clump
of perennials.

That doesn't mean that you should NEVER plant in pots - it is a
standard way of constraining perennials that you want to restrict
in size (but it works for only some). It should never be done by
default unless the pots are biodegradable.


Regards,
Nick Maclaren.