I have only eaten trees once. I just chewed it up and drank it down with a coke. Ate about a gram of good bud. A couple of hours later I was pissed off that I wasn't feeling anything and had wasted good bud. About an hour after that (3 hours after eating) I noticed I was stoned. Really stoned. Blistered. Then FUBAR. My eyes got bloodshot and heavy too. The buzz lasted for hours. Took a long time to take effect but was a strong and long lasting effect.