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12 inch boxes question

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12 inch boxes question

Post  kahrani on 8/11/2010, 5:50 pm

Hi,

I have just been building my SFG and have made all my boxes 12" high as I prefer the height. In the book it says to just layer the bottom half with sand. This is okay for most of my boxes, but for my root veg, should I fill all with MM? (I've designated a 2x4 box for potatoes, carrots etc)

Also, because sometimes things work a little bit differently here in NZ, it actually seems cheaper for me to buy bags of cheap compost (5x40litre bags for $20) than to buy bags of sand (20litre bag $7 each!)... would it be ok to use this cheap compost as my bottom layer and then MM on top with a better compost mix? Or do I need something which drains better? I could get a trailer load of sand but I have no access into my garden from the road, and it would be a bit of a job to shovel it all into wheelbarrows and buckets and bring it over (remembering the work I had to do to get the firewood delivery into my woodshed when they dumped it on the street - not fun!)

Thanks,
Clare

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Re: 12 inch boxes question

Post  Chopper on 8/11/2010, 5:59 pm

I don't think it is about drainage so much as just having something cheap to fill the space with since you don't need that area for nutrients.

Ha! I just saw your welcome post and my name is Clare.too. "Like the county" I used to tell people about the spelling until recently when I am finding too many people have no idea what I am talking about.

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Re: 12 inch boxes question

Post  kahrani on 8/11/2010, 6:37 pm

Thanks Chopper! I'll just go get the cheapo compost then, I just will use some different kinds for the Mel's Mix. It will definitely be easier than hauling a trailer load of sand through.

Yes I say 'like the county' too, although not everyone gets that - I'm originally from the UK so people knew what I meant when I said it there, but not so much in NZ. People also have problems spelling my surname, it's not hard so I don't know why, but luckily there is a library where I live named after someone with the same surname so I now say 'like the library'!!

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Re: 12 inch boxes question

Post  rjsehm6 on 8/12/2010, 12:12 am

Hello, I am new to SFG and I am currently building my box. It will be 4x4 and 12 inches deep. So from the previous posts it seems as though I will not need Mel's Mix for the whole 12 inches correct? Oh and by the way, how much Mel's mix is needed exactly? In reading the book I thought that for a 4X4 I would need 8 cubic square of mix but then I read a post where someone had 4-4x4's and I believe they were 20 inches deep and I thought I read that he used 10 cubic squares of the Mel's Mix. Please advise

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Re: 12 inch boxes question

Post  chocolatepop on 8/12/2010, 12:21 am

@rjsehm6 wrote:Hello, I am new to SFG and I am currently building my box. It will be 4x4 and 12 inches deep. So from the previous posts it seems as though I will not need Mel's Mix for the whole 12 inches correct? Oh and by the way, how much Mel's mix is needed exactly? In reading the book I thought that for a 4X4 I would need 8 cubic square of mix but then I read a post where someone had 4-4x4's and I believe they were 20 inches deep and I thought I read that he used 10 cubic squares of the Mel's Mix. Please advise

You would need a minimum of 16cf of mels mix if you were going to fill the whole thing that way.

If you are wanting to do the split, personally i would do 10cf of mels and then your filler.

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Re: 12 inch boxes question

Post  Chopper on 8/12/2010, 12:31 am

Six inches of a 4X4 = 8 cf of MM. So, you would not want to use any less than that. The goal is to have the top six inches as MM. It is OK to have more than that though.

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Re: 12 inch boxes question

Post  camprn on 8/12/2010, 12:31 am

@Chopper wrote:I don't think it is about drainage so much as just having something cheap to fill the space with since you don't need that area for nutrients.
Ha! I just saw your welcome post and my name is Clare.too. "Like the county" I used to tell people about the spelling until recently when I am finding too many people have no idea what I am talking about.
+1 cheap is best. You can add sand or other amendments for drainage later if you find you need it.

Chopper, my guess the reason folks don't understand the Cty. Clare reference is that you're not on the East coast anymore. Maybe? There are a lot of Irish descendants here after all.myspace backgrounds images

Wink


Last edited by boffer on 8/12/2010, 1:28 am; edited 2 times in total (Reason for editing : spelling)

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Re: 12 inch boxes question

Post  boffer on 8/12/2010, 12:33 am

I would plan for a minimum of 10 cf of MM for a 4x4x6inch box. Once the soil is thoroughly saturated, it compresses. Don't worry about having materials left over-you'll use them for the next box you build-oops who?me? secret's out: you can't build just one!



@camprn wrote:
Chopper, my guess the reason folks don't understand the Cty. Clare reference is that you're not on the East coast anymore.
Maybe so, I stood up, but it still went over my head. tongue

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Re: 12 inch boxes question

Post  rjsehm6 on 8/12/2010, 12:39 am

Thanks for the replies. Okay, so for a filler, I see that someone mentioned compost and sand, anything else? I am going to Lowes tomorrow to purchase a filler. I purchased the Mel's Mix for 12.00 each bag so I will look for something less expensive. Really new to all this. Thanks again.

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Re: 12 inch boxes question

Post  Chopper on 8/12/2010, 1:02 am

@camprn wrote:
Chopper, my guess the reason folks don't understand the Cty. Clare reference is that you're not on the East coast anymore. Maybe? There are a lot of Irish descendants here after all.
Wink

I am sure that is it. As I would not recognize Pacific Rim or Mexican geographic references.

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