Yes, I had the same problem when living along the coast in California (humid). As I recall, I added either crushed granite, contractors sand or pea gravel to lighten up the soil and increase drainage. The expensive and time consuming remedy worked there but the experience made me shy away from using here in Austin. I don't think it works best @ 100 percent content, maybe too "heavy".

Thank you, I'll see about removing half of the soil and adding one of those to the bed. It's my first time doing a 12 inch raised bed. Done the raised 6 inch mixing soil in the ground with no problems.

Barb

Barb, the MG Garden Soil, is a soil amendment, meant to be mixed with your soil. I don't think it is meant to be used as a substitute for your soil.
Jim

Jim is right. Unfortunately, I filled my 12" raised beds with MG garden soil. My vegetables were not doing well. Found out it's because MG garden soil is not fully composted, and it is taking nitrogen out of the soil. I've started fertilizing, adding nitrogen, and my veggies are doing much better.

I would guess that the MG garden soil and the mushroom compost is causing some sort of reaction when breaking down. If you can add soil, that would be great. If, like me, you already have the beds fully planted, a little less water and heavy fertilizing should help.

Barb
I'm so sorry! I know someone who mixes the garden soil and MG potting soil in pots and loves it.

I was wondering...Isn't MG owned by Scott? I know I've called them before with a question about a fertilizer. There's a number on the pkg. I had to persist a bit to get someone who actually knew something. But I did get a knowledgeable person. That might be a way to go.

How frustrating! All that hard work and good intentions.

cynthia