Hello

My wife would like to bring her Catnip (not for her cat...).

But it looks MUCH like drug : 

Do you think we can have problem?

Should I put it in the checked or hand luggage...?

Should I hide it in a tea box...?

Thank you

Probably where I'd suggest you put it would be inappropriate for TV.........................................

I would put it in checked baggage clearly visible, no "hiding".

For the unlikely case that the bag is searched you (your wife) should be able to explain what it is.

It is available in Thailand at a couple of online sources, like here:

https://www.facebook.com/commerce/products/1089298221140253/

http://iorganicpetshop.com/product/16/catnip-seeds-nepeta-cataria-เมล็ดแคทนิป