Should I keep Olive tree in hessian sack in the sun?

in Fruit & veg
Hi, I've been gifted an Olive and a bay tree. They came in hessian sacks (drawstring).
Can I keep them in their sacks? Or will the humidity to the soil produce mold/issues?
They are positioned in full sun.
Thanks!
Can I keep them in their sacks? Or will the humidity to the soil produce mold/issues?
They are positioned in full sun.

Thanks!
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Cause he thinks she melts when he touches her
She knows she's the chocolate girl
Cause she's broken up and swallowed
And wrapped in bits of silver
The olive tree is currently in clay soil.
I've taken the sacks off!! They still came with a pot - shame as the sacks did look nice!
They won't last for long though as they tend to rot when wet.
Hi! Do you think this pot is a little big? I may have gone a little too large 😬 I got one for both trees.
Thanks!
The pot isn't too big for one.