Mix for very large container?

aharriedmom(8B FL Sunset 28)August 1, 2012

I have two large [ugly, standard] bathtubs with plenty of drainage holes* and I want to repurpose them to large raised beds for annuals - both winter and summer. I haven't decided if I want shade or sun - but if I put them in a spot between a crepe myrtle & mimosa, I can have winter sun & summer shade.

What's the best type of mix to put in a container that large? Gritty would be too cost prohibitive, but the 5-1-1 would probably be not much more than buying a "premade" soil. But is the 5-1-1 good for something that size?

Picture of basically what I want to do: http://blog.littleinsights.com/2009/04/30/reclaimed-wood-planter-box.aspx

Story on unfortunate bathtubs can be seen here:

http://forums2.gardenweb.com/forums/load/frugal/msg0709504729656.html?4

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edweather(Zone 5a/b Central NY)

The 511 would be good for something that size. Since you need a lot of mix definitely check out local mulch suppliers. If you have access to a pick-up truck you can probably get a half-yard (or a yard) of double-ground pine bark CHEAP. Last year we bought a half-yard for about $15, and it lasted us 2 years. The double ground stuff is perfect for making the 511 mix....just add a little perlite, lime, and CRF if you want, and you're all set.

    Bookmark   August 1, 2012 at 10:33AM
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aharriedmom(8B FL Sunset 28)

Haha, the only thing that has been putting me off from making the 5-1-1 was wanting to buy a tiny bag of dolomitic lime (which was out at HD last time I went). Now I may as well get the bigger bag if I'm going to fill two tubs.

Woot! I feel a trip to the "big city" coming up... hopefully tomorrow, so I can visit the Habitat for Humanity ReStore and various thrift stores.

    Bookmark   August 1, 2012 at 2:36PM
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