De or het randbeplanting?

The correct Dutch article is:

de randbeplanting

Rule Words ending in -ing: almost always de. See the rule

How to use randbeplanting

the randbeplantingde randbeplanting
this randbeplantingdeze randbeplanting
that randbeplantingdie randbeplanting
our randbeplantingonze randbeplanting
your randbeplantingjouw randbeplanting
every randbeplantingelke randbeplanting
which randbeplanting?welke randbeplanting?
a big randbeplanting / the big randbeplantingeen grote randbeplanting, de grote randbeplanting