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Mel's Mix Resources

Find handy soil calculator, free downloads, videos and more!

Learning Videos

Where to Get Vermiculite & Peat Moss

Coarse (or super coarse) vermiculite is usually the challenging Mel’s Mix™ ingredient to source. Worry not! We’ve got you covered. As of 21st of August 2023, here’s where you can find the right stuff:

Another important ingredient of Mel’s Mix™ that can be difficult to find is peat moss. As of 21st of August 2023, here’s the list of where you can find it online:

You can also ask your local nursery to order your coarse vermiculite and peat moss for you. It’s always a good idea to support your local gardening businesses.

Are you looking for alternatives to peat?

Mel's Mix components

Sadly, peat is a slow growing, natural resource that hasn’t always been well managed, and in many places has been seriously depleted, leaving negative effects on the environment. Many gardeners are looking for a peat alternative.

Mel’s Mix is a carefully chosen, balanced growing medium consisting of 1/3 peat, 1/3 vermiculite and 1/3 blended compost. It is ph neutral, nutrient rich, friable, and well draining without drying out. All three ingredients play their part in creating this winning combination.

Creating Mel's Mix & Compost

family is making Mel's Mix

Here are some handy charts explaining how much Mel’s Mix you need for common SFG box sizes and explaining how many 5
gallon buckets each of peat moss, compost, and coarse vermiculite you need to make specific volumes of Mel’s Mix.

Get practical composting tips and more!

Mel's Mix Calculator


How Much Soil Do You Need?

Here’s a handy Mel’s Mix calculator. For instance, a 4’x4’x6″ deep raised bed would need 8 cubic feet of Mel’s Mix to fill the bed.
To make it super simple, you would need FOUR (5) gallon buckets EACH of fluffed peat moss (or coco coir), coarse vermiculite and blended compost. Always make extra compost since you’ll add a trowel to a square each and every time you harvest it.


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The Square Foot Gardening Method creates healthier gardens, larger harvests…and happier, more fulfilled gardeners!

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