02/10/2026
Continuing the propagation theme, an important consideration for home gardeners is the use of peat in planting mixes. I do not use peat because it is as unsustainable as oil, or old growth trees. Here https://rosysoil.com/blogs/news/peat-free-potting-soil are some explainers. The main three issues are 1) Harvest damages a fragile and rare ecosystem - not often mentioned 2) It releases carbon from what is a MAJOR carbon SINK 3) It is not renewable - once gone, bogs take millenia to form.
I buy my potting soil in bulk from Highway Fuel Company in Salem. They have a mix that does not include peat. You can either look for a similar mix near you, or you may want to get the ingredients and mix a homemade batch. Here is a recipe if you want to try it - kind of like sourdough bread making at home :) https://hennepinmastergardeners.org/no-peat-potting-soil-options/
The only downside to many mixes is that they do often add perlite, which is mined, and that also has environmental impacts. It is very useful for improving texture and drainage in potting soil. Using sand as an alternative frequently results in super heavy pots, that also can have a cement-like soil quality.
We all have an effect on our surroundings, so good to interrogate what that is, and how best to improve it. Your thoughts are welcome! Have you tried any of these methods?
By Meleah Maynard, Hennepin County Master Gardener Most every commercial potting mix contains sphagnum peat moss because it’s a good, lightweight, organic amendment that improves drainage, as well as water retention and air circulation. The downside to peat moss is that it isn’t a sustainable re...