Step 4Fill the box with potting soil and fertilizer
1. Add moist potting soil on top of the screen until the box is half full. Sprinkle that layer with water and pat it down, especially above the areas with the holes (which you filled in a previous step).
2. Then fill the rest of the box -- completely to the top -- with dry potting soil. Sprinkle well with water and smooth out the soil.
3. If you're growing tomatoes, mix in two cups of the dolomite that comes with the box into the top 3-4 inches of the box and re-smooth the dirt.
4. The box also comes with fertilizer, which you should use to create a two-inch wide strip in the location that you want to put the fertilizer. The instructions have a handy diagram for where to put the fertilizer and seedlings based on how many and what types of plants you want to grow.
Here are my notes on how to make sure this section doesn't take forever:
This was the part that took the longest by far, mostly because I didn't have a big tub in which to mix water and the dry potting soil to make the moist soil the directions call for. I ended up using this dinky little pot with built in plastic to hand mix the water and soil. I recommend getting a big bucket or tub to do this in one big batch.
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