This is an old thread and I am late to the party but there are a LOT of misconceptions outlined here that need some clarification. First, SWC's, Earthboxes or the City Picker boxes do not require any kind of exotic or customized soil mix. They are nothing more than containers and any decently draining container potting mix will work just as well as the so-called specialized mixes the manufacturers recommend. So will the 5-1-1 mix Second, if you are using a commercial peat based potting mix (like MIracle Gro) for all or part of the soil mix, then you DO NOT need to add the lime. The lime is there only to buffer the very low pH of the peat - nothing more - and commercial peat based potting mixes have already had lime applied to effect this buffering. Adding more - especially in the quantity suggested - could be detrimental. Thirdly, if using a fertilizer enriched potting soil (like the MG), you should not need to fertilize for at least 6 weeks. And you can use whatever kind of non-organic fertilizer you like as long as it contains all necessary plant nutrients. For container grown plants of any kind, all required nutrients are supplied by fertilization, not by the virtually nutrient void potting media. I prefer a full range liquid fert like Dyna Gro Foliage Pro. I never suggest using a dry organic fertilizer - like the Espoma products - in a container, as they require breakdown and digestion by soil organisms before any nutrients are released and potting soils just do not contain these absolutely necessary populations. Dry organic ferts are pretty much wasted under these conditions.

Grow_girl, You should probably post your location, as that sounds like a pick-up-only item. You can also try listing it on Craigslist.

I have been looking at grow boxes and was wondering if anyone has had any experience with products that aren't solely meant for growing cannabis like the 7sensors.com growbox? Thanks!

Seeds don't require a lot of soil for germination. As a matter of fact, I would have lots of problems with your container. I've always used standard #1020 plastic trays, with drainage holes. I sow two or three hundred seeds in each tray, place them over heat mats, and stick them in my little grow room that we assemble in the garage each winter. The trays, of course, are very shallow, but the seedlings only remain in them for a very few days after germination after which they are transplanted into trays with plastic inserts.