First since I didn't have the city pass, I had to spend $10 to get in. It's not much but it's still what I would consider too much, just to visit a regular garden.
Moreover, for my two kids, aged 6 and 9 years old, they charged us the regular fee, meaning they paid like adults!
In the end, a total of $40 seems like a rip off and a waste of 20 minutes of an otherwise perfect stay in Portland.
If you are in the area I would recommend that you pass on this visit. Better to spend more time at other more beautiful and interesting attractions around the city!