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Gardening

Mr.Bill

(24,871 posts)

3. Years ago when I worked in the garden dept. of a large Super Drug store,

Reply to spinbaby (Original post)

Sat Jun 16, 2018, 03:46 PM

Jun 2018

I was told the reason some potting soils were so much more expensive than others is they run it down a conveyor belt through a steam bath to kill weed seeds. Supersoil was a specific brand that did this, I think.

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Let's talk compost and weed seeds [View all] spinbaby Jun 2018 OP

That may not do it - I've used really hot water treatment on tomato seeds - also NRaleighLiberal Jun 2018 #1

Stale Seed Bedding Drifter Jun 2018 #2

Like a flame thrower? spinbaby Jun 2018 #4

Sort of ... Drifter Jun 2018 #5

This one is overboard Drifter Jun 2018 #6

Years ago when I worked in the garden dept. of a large Super Drug store, Mr.Bill Jun 2018 #3

Up to 150 today spinbaby Jun 2018 #7

Solarizing will kill your microbes too. WhiteTara Jun 2018 #8

I can't do that spinbaby Jul 2018 #9