YELLOW BLOCK is made by splicing BRICKS and DAISY. YELLOW BLOCK is in color blocks category. No need for growspray here, will be done in a jiffy. YELLOW BLOCK gives experience points when broken. How many times you need to hit it? Head to the wiki for more info: <a href="https://growtopia.fandom.com/wiki/Yellow_Block">yellow block</a> Seed mathematics is very complicated, but you should get at least 1 seed back from splicing YELLOW BLOCK. Profiting with this might be questionable. Will you get enough blocks to build something? You just have to find out yourself.