Increasing Height of SFG

ABGardener 6/24/2012, 3:56 pm

I have found that the soil in my SFG has settled significantly - only have about 4". I am thinking of increasing the height of my existing 2X6 sized SFG (which is really only 1.5" X 5.5") by adding another 2X4 on top. Then I can top up the soil and this might also help protect a bit more from weeds. Has anyone ever done this?

boffer 6/24/2012, 4:11 pm

Hi, welcome to the forum. Your settling is normal, and veggies will still grow. The level will build back up over time as you add more compost when re-planting. If you want to add additional height to your box, why not make it another 2x6, instead of a 2x4, so you'll have a deep box for carrots and potatoes.

ABGardener 6/24/2012, 7:10 pm

Can I just add compost to top up my existing soil, or would you recommend mixing up another batch of MM's.

boffer 6/24/2012, 7:20 pm

Either one would be OK. I always make about 20% more MM for a given box volume when I'm filling it the first time because I know the MM will settle. Some folks like to have extra compost in their mix and make up the difference with more compost.

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