Return to the Square Foot Gardening Forum | Post a Follow-Up

4x4x8 bed, How much mix?

Posted by leeds376 z6a S.Cent. PA (My Page) on
Mon, Mar 30, 09 at 11:19

I've searched and read, searched and read and successfully confused myself. I've got my first raised bed built, a 4x4 bed 8 inches deep and want to fill it with Mel's Mix, but am not sure how much.

I have a 3.8cu. ft bale of peat
1- 4.0cu. ft. bag of vermiculite
and a few 40lb. bags of composted manure....and currently looking for two more different kinds of compost.

Any help is greatly appreciated.

Follow-Up Postings:

RE: 4x4x8 bed, How much mix?

Approx. 10.7 cubic feet of fill total. Using Mel's recipe that would be about 3.6 cubic feet each of vermiculite, peat moss and compost.

You already have all the peat and vermiculite you need. Now you just need to figure out a weight to volume conversion for the compost you already have. That's the tricky part - I would just suggest eyeballing or measuring the bag dimensions.

RE: 4x4x8 bed, How much mix?

10.56 cubic feet of mix. You almost have enough to fill it now...I would mix in what you've got, then water it really good. Most likely, it will shrink an inch or so. Then, add some more compost, and blend in with your hands.


RE: 4x4x8 bed, How much mix?

Supposedly, a 40 lb bag of manure should equal 0.75 cubic feet. I used that rule of thumb when filling my beds, but it didn't seem to hold up. I needed quite a few more bags than I calculated.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Square Foot Gardening Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here