GUESTBOOK is made by splicing BOOKCASE and SHOP SIGN. You can find this item in platforms category. Have you ever watched the paint dry? It is faster than growing this tree. Nice experience you find in these blocks. How many times you need to hit it? Head to the wiki for more info: <a href="https://growtopia.fandom.com/wiki/Guestbook">guestbook</a> By default you should get at least 1 seed back. Will you strike it rich? You just have to count the gems yourself. Massproducing GUESTBOOK can be tricky. You will find out after you have harvested a few.