shrub vs shrubbery

shrub and shrubbery both are nouns.

Word	Noun	Adjective	Verb	Adverb
shrub	Yes	No	No	No
shrubbery	Yes	No	No	No

shrub (noun)	shrubbery (noun)
a low woody perennial plant usually having several major stems	a collection of shrubs growing together
	an area where a number of shrubs are planted