Dry hop

So I usually dry hop my beer for a maximum of two day, but I have one sitting for a week not of hops but of hibiscus. I was wondering how many days to the fellow home brewers dry hop for. Curious anyone out their have a dry hop for a week or more and how did it taste. wondering the outcome.

I've dry hopped a Pliny clone for two weeks. It was fantastic.

Usually a week, sometimes as long as two. Keeping the temperature below 70F seems to keep any grassy flavors from appearing.