Tea is a little different. It actually gets a little darker before it starts to fade. Think green tea...if you leave it out overnight you have tea colored tea the next day. Just remember not to put your hose in boiling hot tea. Let it cool until it is very warm, not hot. I've never had a problem with it coming out. I just soak them and let them dry.

Here is a great site for natural dyes http://www.pioneerthinking.com/naturaldyes.html