Mastodawn

So yeah, #CoarseSand can be used instead of #Perlite and #Vermiculite (and I would sterilize it before using it).

However, I did read that coarse sand can be too sharp for some root systems? It's something to consider...

"Coarse, sharp, or builder sand, often used in construction, is a primary ingredient in potting media. Like peat moss, sand improves drainage and aeration but does not improve water-holding capacity. Too much sand will make containers too heavy to move. Sand should not be mixed with clay-based soil."

From #PennStateCooperativeExtension, Homemade Potting Media:
https://extension.psu.edu/homemade-potting-media

#SolarPunkSunday #PottingSoil #PottingMix #Gardens #Gardening

Homemade Potting Media

Many cost-conscious home gardeners and do-it-yourselfers look for cheaper ways of growing plants for home and garden use. Learn how to make your own potting media!

DoomsdaysCW Feb 1

So, like #Perlite takes a lot of energy to produce, while #Vermiculite is mined! Not sure if there are alternatives to either of those out there. Maybe sterilized #CoarseSand? Hmmmm... Something to ponder...

Learn All About The Differences Between Perlite and Vermiculite

Written By: Robin Sweetser Gardener
January 11, 2026

"How do you know which is best to use in your garden—perlite or vermiculite? Some people think they are the same and used for similar purposes, but that’s not the whole story. Let’s look at the similarities and the differences and help you to pick the best one."

https://www.almanac.com/perlite-and-vermiculite-choosing-the-right-one

#SolarPunkSunday #PottingSoil #Gardens #PottingMix #Sustainability

Perlite vs Vermiculite: Uses, Differences & How to Choose

How do you know which is best to use in your garden — perlite or vermiculite? Let's look at their similarities and differences.

Almanac.com

DoomsdaysCW Feb 1

I hadn't considered using #RiceHulls in a #PottingSoil mix. But I am definitely going to incorporate that into a #PeatFree mix, along with #CoconutCoir, #Perlite or #Vermiculite, and aged #Compost!

#SolarPunkSunday #Gardening #Sustainability #SeedStarting

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VelteropⓐⓊ🪂🇪🇺🇳🇱🇬🇧🇩🇪Jul 10, 2025

@rolf
Science 'worms' its way to lithium extraction from seawater.
#vermiculite

Eric LeVan Apr 5, 2024

Not much of a picture unless you like looking at fine graded vermiculite.

But I got my seeds for this year. Sowed some royal burgandy bush beans, shishito and habanero peppers, chocolate stripe tomatoes, cauliflower, and pak choy.

Direct sowing carrots, spinach and broccoli this weekend.

#gardening #GrowingVeggies #seeds #vermiculite