propagate vs plant life

propagate is not a noun while plant life is a noun.

Word	Noun	Adjective	Verb	Adverb
propagate	No	No	Yes	No
plant life	Yes	No	No	No

propagate (noun)	plant life (noun)
	(botany) a living organism lacking the power of locomotion

propagate (verb)	plant life (verb)
multiply sexually or asexually
cause to propagate, as by grafting or layering
cause to become widely known
transmit
transmit or cause to broaden or spread
become distributed or widespread
travel through the air
transmit from one generation to the next