You cannot splice GARBAGE. You have to buy it or acquire it otherwise. This item belongs to terrain category. You get experiance points for breaking GARBAGE. GARBAGE can be broken. You get at least 1 seed back (maybe more!) from splicing GARBAGE. Will you strike it rich? You just have to count the gems yourself. Blockratio of GARBAGE is a mystery. Maybe you can check the wiki for <a href="https://growtopia.fandom.com/wiki/Garbage">garbage</a>