The only citation in APA that requires the full date, which is the date you accessed (retrieved) the source is if you are citing a Wiki, like something from Wikipedia. The date that follows the title is the date it was published. If you get no exact date, then you use "n.d." for "no date." The point being a blog does not require a retrieval date. If the title of the blog was "How to Grow Apples", your entry would look like:
Perry, Z. (n.d.). How to grow apples [Web log post]. Retrieved from
http://hubpages.com/howtogrowapples (with no hyperlink for the url)
While hubs can be considered blogs, they can also be considered articles and essays available online. So, you can also use the following citation:
Perry, Z. (n.d.). How to grow apples (the title would be in italics). Retrieved from
http://hubpages.com/howtogrowapples (undo the hyperlink for the url)
I hope this helps.