Do adverbs always immediately follow their respective verb?

Question

What is the rule for position of adverbs in Spanish? Are adverbs required to immediately follow the verb:

Espero que trates mejor a tus clientes.

Or are they allowed to go after the sentence fragment?

Espero que trates a tus clientes mejor.

This second ordering would sound more natural in English:

I wish that you treat your clients better.

I'm not sure if this ordering is also more natural in Spanish.

Please indicate your level of fluency in English and Spanish in your profile. Some of the English in your question does not sound "natural". - Jubilado, Aug 29, 2013

Answer 1

Here is a great link to answer your question and raise many more.

Adverbs

I like your statement, "and raise many more" :). The more answers you get, the more questions you have. - 0083f5dc, Aug 28, 2013

Ain't that the truth! - gringojrf, Aug 28, 2013

Answer 2

Spanish is more liberal than English in word order. With this particular sentence you could use either example, however, for me the first variant sounds more natural.