absolutely

Yup.

I've not found any problem with dumping them, bag and all, in or on either the compost pile or the garden soil. The bags are also biodegradable.

Agreed - I always rip the staple off and then throw the whole bag in the pile.

I emptied tea bags onto my miniature roses and they have never been this green. All I did was pitch out two tea bags right before it rained.