n2winks
 
Reply Sat 6 Jun, 2009 01:12 am
Can you use last years bag of potting soil? I have one unopened and one is half full but closed off all year.
  • Topic Stats
  • Top Replies
  • Link to this Topic
Type: Question • Score: 2 • Views: 4,422 • Replies: 3
No top replies

 
Rockhead
 
  1  
Reply Sat 6 Jun, 2009 01:24 am
@n2winks,
yes, you are fine with it, unless it's moldy or such...
0 Replies
 
sullyfish6
 
  1  
Reply Sat 6 Jun, 2009 04:53 am
You may have to rejuventate it with some fertilizer like Osmocote. Smell it. If it smells moldy, don't use it.
0 Replies
 
dadpad
 
  1  
Reply Sat 6 Jun, 2009 05:12 am
Resterilise potting mix by heating it in the oven to 400 F in a roasting pan or similar, leave it for an hour or so to ensure the heat properly penetrates the mix.
If you wish to add fertiliser use a slow release fertiliser (like osmocoat), but I dont think this would be really essential. if the mix is stored in plastic bags the original nutrients will still be active.
Potting mix costs next to nothing so you may not want to go to the trouble. throw the old stuff on the compost heap or garden and buy new bags.
0 Replies
 
 

Related Topics

The joys of gardening. - Discussion by gustavratzenhofer
GARDENING - Discussion by Patricia Holland
Please ID! - Question by gidoboskos
Lemon Balm - Question by Naedre
Order of flowering - Question by cinemike
Question for our gardeners - Question by chai2
I Don't Know Which End Is Up ? - Question by nextone
Pecan Tasssles used as mulch - Question by pipelinerpoke
 
  1. Forums
  2. » unused potting soils shelf life?
Copyright © 2021 MadLab, LLC :: Terms of Service :: Privacy Policy :: Page generated in 0.03 seconds on 09/23/2021 at 05:36:00