If you're headed north or south on I-5 and are near Salem, take the turnoff for Keizer and go east to Silverton. Silverton Road will lead you directly to old downtown Silverton with its many murals.
The Oregon Garden is three blocks from the Silver Spur RV Park and less than one mile from downtown. Also nearby is Silver Falls State Park, the largest state park in Oregon.
Next week is Oktoberfest but I won't be here to share in the fun. However, the other sights in Silverton are available year round. You can spend a day here but take two so you can appreciate what this little town has to offer. Check out their website for more information: http://www.silvertonor.com/