植物にお水あげて。

plant; vegetation

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

honorific/polite/humble prefix

landing; unloading (e.g. a ship); catch (of fish); takings; sales (of a shop); defloration (e.g. of a geisha); preservation (of cut flowers, in ikebana)

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.