Finally fired up the Earthbox a couple of weeks ago (on 8/23).  Was pretty easy to set up (I had read up on some tips at the Earthbox Forum, which helped).  Planted four types of squash.  Seems like an overload for the box, but that is the official recommendation for squash.

Used Hi-Yield potting mix, two bags.  The type of mix is important–no soil allowed in an Earthbox or the wicking action will not happen.

I sowed the seeds directly into the Earthbox, two in each hole.  They came up on the third day.  Thinned them by cutting off the extras at the base after about a week.

I planted two types of zucchini and two types of yellow squash.  I’m just hoping that the dreaded squash vine borer is not familiar with Earthboxes.