Burst forth and Spring up

Burst forth verb - To develop suddenly and violently.

Spring up and burst forth are semantically related in extend topic. In some cases you can use "Spring up" instead a verb "Burst forth", when it comes to topics like happen, evolve.

Spring up verb - To come to one's attention especially gradually or unexpectedly.

Burst forth and spring up are semantically related in extend topic. You can use "Burst forth" instead a verb "Spring up", if it concerns topics such as happen, evolve.