This is the background for my question...
I had a plant that I bought from a supermarket some time ago. I noticed it was dying, so when I inspected it I noticed the soil had worms (I recently posted a question about this).
So I took the plant, washed it really well (ie removed all the soil with water) and moved it to another planter with fresh potting soil.
I continue monitoring the plant for several weeks and I notice that it’s still not improving. I remove the plant again and notice that the trunk has small worms inside of it.
My concern is that the potting soil has been contaminated with these worms.
My question: is there a way to make sure that the potting soil isn’t infected with these worms?