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soil mix for potatoes

Posted by emorems0 PA - 6a (My Page) on
Thu, May 1, 14 at 22:47

I'm planting a potato bin of sorts (just an oval of chicken wire, with straw around the edges to keep the soil contained within the 'bin'), but I'm having a hard time deciding what to fill it with. I've seen so many different suggestions on GW and throughout the web. I know it needs to drain well and be light/fluffy/not compacted, but I'd love to hear a tried and true 'mix' with proportions.

I'm thinking some combination of topsoil, peat moss, pine bark mulch (as in 5-1-1), mushroom compost - or skip the compost and just use some of the DynamitePlus CRF that I have here from my 5-1-1 mix.

Also, how thick a layer of soil mix should be placed down below the seed potatoes? 6"? 12"?

*I'm using sprouted, organic red potatoes from the grocery store as my seed potatoes if that makes any difference on depth, etc.

Follow-Up Postings:

RE: soil mix for potatoes

If it is open on the bottom, it is a little more a raise bed than a container, which I think means you can be more flexible, creative. Your own mixture of soil and compost, or a planting mix, or a garden soil, etc.

FWIW, I just watched and liked this video on more isolated big grow bags, and you'll see the University of Illinois Extension recommending a soil, compost, sand mix. (probably 1:1:1)

(I think I'm planning the cheap plastic grow bags, commercial style, for my next year's garden.)

Here is a link that might be useful: Grow Bags: An Alternative to In-Ground Gardening

RE: soil mix for potatoes

Here is another video on potato in a wire tower. Lots of similar out there, search "potato tower"

Here is a link that might be useful: Taters in a Cage

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