키우다 covers raising a child, growing crops and building something up, and the adverb says in what style. 강하게 키우다 "raise them tough" appears three times here, twice inside a joke caption about someone being pushed hard; 버릇없게 키우다 is raising someone spoilt. For plants it works the same way — 급하게 키우다 "grow them in a rush", 김을 키워볼까 "shall I try farming seaweed?". 키우다 always takes an object; something growing by itself is 자라다.