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Input on mulch and mix layer

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Input on mulch and mix layer

Post  licellec on 3/6/2013, 3:17 am

Hello to all!

I need your input please. I plan to build some 4 x 4 boxes with 8 inches depth and 10 inches depth. I will use the 10 inches depth for deep rooted plants such as carrots and tomatoes. My question is since the general need is only 6 inches for other vegetables, and would require 8 cubic feet of Mel's mix, is it ok for the undermost layer to be a cocoa shell mulch, that way i can still maintain the 8 cu ft of the mix.

Thank you!

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Re: Input on mulch and mix layer

Post  Kelejan on 3/6/2013, 1:07 pm

I think you will be OK putting six inches of MM on top of the mulch.
I expect carrot roots will go down far enough to reach the mulch and will be able to get nourishment there.
glad you\'re here licellic happy hi and happy gardening. Laughing

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Thank You kelejan :-)

Post  licellec on 3/7/2013, 1:06 am

Appreciate your reply. Another question :-) how about drainage issues for a SF box? I plan to just put my box on top of my grass following instructions as to put a landscape cloth underneath to prevent weeds and also a hardware cloth tp prevent critters from digging up. Should I poke holes on the landscape fabric for water drainage? Thanks.

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Re: Input on mulch and mix layer

Post  RoOsTeR on 3/7/2013, 7:35 am

You really only need 6" for almost all vegetables. Including tomatoes. Most of my tomatoes grew to 9 and 10 foot tall last year in only 6" of Mel's Mix. I also grow my carrots in 6" and perfectly happy with the results. If you do want to grow some deep rooted items like carrots and potatoes, you can always buy or build a top hat.


You can do your beds as deep as you want. There's nothing wrong with depth, but just know that it's really not needed in most instances. Very Happy


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