You must have GRASS and GREEN BLOCK to make GREEN SHIRT. You can find this item in shirt category. No need for growspray here, will be done in a jiffy. Currently we do not yet have knowledge about the durability of GREEN SHIRT. Currently we do not yet have knowledge about the seedratio of GREEN SHIRT. Oops, there is no entry in the database about gemratio. If you know something, please share. Currently we do not yet have knowledge about the blockratio of GREEN SHIRT.