Hello. I want to make my own potting soil for seedlings. It will consist of mainly peat moss. Other ingredients:perlite, worm castings. Since peat...
peat moss pH...liming #177800
Asked April 28, 2014, 2:25 PM EDT
Hello. I want to make my own potting soil for seedlings. It will consist of mainly peat moss. Other ingredients:perlite, worm castings. Since peat moss is considered to be acidic, I will need to add lime to bring it into a 6.2-6.5 range. If I had a 5 gallon bucket filled with straight peat moss, how much lime would I nedd to add? Thanks.
If you want to make a good potting soil for seeding in I can share a couple of recipes from an ATTRA organic potting mix publication. Just keep the proportions the same no matter the volume you use. 75 percent sphagnum peat moss 25 percent vermiculite (can be perlite) 5lbs of ground limestone per cu yd of mix
Here is another close to what you want 6 gallons of sphagnum peat moss 1/4 cup lime 4.5 gallons of perlite 4.5 gallons of worm compost 1/2 cup bonemeal 2 cups rock phosphate
In your example with 5 gallon bucket of peat moss you would use 1/5 cup of lime I would add about 1.5 gallon of vermicompost and 1.5 gallons of perlite
This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.