When you call out plants (place plant labels), the labels zoom out and rotate so they're not horizontal.
This issue is the result of a DVIEW twist in your drawing.
To correct the issue, follow our steps to remove a DVIEW twist.
The DVIEW twist will be replaced with a user coordinate system (UCS). You should now be able to place plant labels normally.
Are your plant labels placing at angle in a viewport but not in Model Space?
Your viewports may have been locked when you re-applied a UCS.
If so, unlock viewports, then re-apply your UCS.