Many plants grown in hawaii cannot be grown in the united states because of
competitive factors
physical factors
geographic features
photosynthetic features

Plans need requirements in order to grow. Just like some plants can't thrive in low amounts of water others require higher amounts of water. With this in mind, geographic features is the correct answer. Geographic features can afffect the way a plant completes photosynthesis and such since if the plant is not in a place where it can thrive, some plants require the climate of the tropic and others need the cold.