What's new
  • Please note members who been with us for more than 10 years have been upgraded to "Veteran" status and will receive exclusive benefits. If you wish to find out more about this or support IcMag and get same benefits, check this thread here.
  • Important notice: ICMag's T.O.U. has been updated. Please review it here. For your convenience, it is also available in the main forum menu, under 'Quick Links"!

Conveniently Organic Soil Mix

ColaCalyx

Well-known member
This recipe gives you a well-draining mix perfect for container gardening, and is easily customized. It's based on amendments per gallon, making it easy to mix small amounts for indoor soil growers.

Here's a recipe based on volume:
5 parts CSPM or 50%
3 parts perlite or 30%
2 parts compost/vermicompost or 20%

I eyeball these measurements with a 5 gallon bucket.

Fertilizer:
Add 1/4 C. dry meal fertilizer per gallon (Kelp, alfalfa, neem, chicken manure pellets, etc)
- Check out my thread on how to make a customizable dry meal mix for topdressing: Dry meal mixing how to (NPK)
https://www.icmag.com/ic/showthread.php?t=374558

Lime and minerals per gallon of base mix:
1 Tbsp calcium carbonate (gardening lime, ag lime, oyster shell) or dolomite lime
1 Tbsp rock dust
1 Tbsp Gypsum
1 Tbsp greensand (Optional)

Leave out the fertilizer, rock dust, and greensand and you'll have a fine seedling mix.
 
Last edited:

KIS

Active member
This recipe gives you a well-draining mix perfect for container gardening, and is easily customized. It's based on amendments per gallon, making it easy to mix small amounts for indoor soil growers.

Here's a recipe based on volume:
5 parts CSPM or 50%
3 parts perlite or 30%
2 parts compost/vermicompost or 20%

I eyeball these measurements with a 5 gallon bucket.

Fertilizer:
Add 1/4 C. dry meal fertilizer per gallon (Kelp, alfalfa, neem, chicken manure pellets, etc)
- Check out my thread on how to make a customizable dry meal mix for topdressing: Dry meal mixing how to (NPK)
https://www.icmag.com/ic/showthread.php?t=374558

Lime and minerals per gallon of base mix:
1 Tbsp calcium carbonate (gardening lime, ag lime, oyster shell) or dolomite lime
1 Tbsp rock dust
1 Tbsp Gypsum
1 Tbsp greensand (Optional)

Leave out the fertilizer, rock dust, and greensand and you'll have a fine seedling mix.

Your base ratios is about what we do with KIS soils. I go 50% peat, 33% pumice (2/3 medium and 1/3 large) and 17% compost/EWC.
 

Latest posts

Latest posts

Top