Used soil

I do no worries. Get as much of the dry root matter out. Doing this about 40 years. Using biobizz light with 10% coco and a handful of extra perlite

I have reused the soil in the past. You need to amend it. I removed the old roots best I could and then mixed the old with new soil mix (compost, perlite, and coco coir). Mixed old and new soil 50/50. Mixed in grow dots and ran another grow. Worked fine for me. The proper way to do it would be to have a soil analysis done to see what is actually left and what is lacking. I have never done this. I have read people have problems after 2 to 3 grows if you dont have it done unless you get lucky. To make your own soil mix really isnt that expensive. That is why most will say just use new soil. But a living soil gets better after each harvest to an extent. From what I've read they still have to be amended though. If you screwed up your soil in the grow and your plants were stressing from it, you probably wouldnt want to reuse it. Especially without a test. Otherwise you could be chasing the issues you created last grow. So can it be done, yes. Does it make sense in all cases, no. The one that said the earth isnt dug up and new dirt put down for plants in mother nature is correct. If they are talking about in forest scenarios, they are naturally amended. Leaves, twigs, ect fall down and cover the ground. They break down and feed the microbes in the soil. That feeds the plants. Self sustaining cycle. So imo it depends on how much effort you want to put into reusing the soil. Just my thoughts, Best of luck! Happy Growing!

Toss it, it's dead soil full of roots unless you prefer using dry ingredients to amend your soil. You'll have to add half a bag of soil to fill your pot back up anyway

2-3 termesztési ciklus után kidobom a régi földet, megy másféle virágok alá a kertben..

Prinzipiell kann man Erde mehrfach verwenden wenn sie wieder aufgearbeitet wurde... Tendenziell rate ich jedoch von mehr als 2-3 Aufwertungsdurchgängen ab da sich durch aufbröseln das Medium zu stark verdichten kann. Willst du mehr Durchgänge auf einem Medium machen ist Coco die bessere Wahl... Wie meine Vorgänger schon schrieben es ist möglich aber dann doch lieber direkt living Soil....

I let it rest, clean out old root debris, and top-dress or mix in organic amendments like worm castings, seabird guano, and slow-release nutrients to get it fully recharged. ​Impact on yield: Honestly, reused soil often performs even better in subsequent cycles once the microbial web is fully established, provided you manage your amendments right. I haven't noticed any drop in yield—if anything, well-managed living organic soil gets richer and more dialed in over time.

When i first starting growing, i re-used my soil (ff ocean forest) for an entire year. I was treating it mostly like a soilless medium after the first use, and it had no negative effects on results, though in hindsight i probably raised risks of problems because i didn't pull the roots out -- decaying organic material will mess with things. it's cheap. i'm a soilless grower, so keeping it isn't wise for me. i just throw it out. ymmv with soil. that takes a more elaborate process to make it proper soil again... re-amending, composting, whatever.. that shit is greek to me. is it really worth your time? (rhetoircal) that's probablay the biggest question. I was all gung-ho about re-using etc early on... now i lean much more into convenience if the cost is low.

the plants we grow are fast annuals. at the end of the grow, the substrate is depleted. you can recycle everything that is very compact in the garden. there is very little reusable material left.

Another thing to keep in mind new soil does not always equal contaminate free. To me I want to minimize how much I'm bringing in new things to my garden and keeping my gardens loop as closed as possible. I wonder if your actually more likely to bring in pest from brand new contaminated soil than reusing soil that you had no problems with. Someone here was just complaining about fungus gnats in their bags.

I love how no one says hot composting. if you want to reuse it with least concern of issues it needs to be hot composted first which takes some time. My soil never gets hot composted between runs but last two winters it has sat outside in the cold. if you want to reuse your soil maybe buy enough for your next round, get a composter for the stuff in the pots now an by the time your new plants are harvested that old soil can be composted down good and used and you can recycle that way. Make sure to test the ph a tds of it though. If you are worried about built up salts you could rinse it a little before composting.

Organoman, I call them oregonoman by mistake the first time thats what i go with now, Is wrong about this. Old school paranoia advice...The earth has been reusing soil for how long? Unless you had serious pest issues, reusing your old soil is going to be far more cost effect. Not saying to go and reuse soil that has root aphids in it. now if you only have a few small buckets to fill sure get some new soil and dump the old stiff outside somewhere. and if your not growing organic and have lots of salt buildup i wouldn't recommend using it. i have 4, 65 gallon pots im running inside. If i didn't reuse my soil i would be broke quick. Most people just don't know how to reuse soil properly, or don't have composting measures in place to amend it properly. I'm going on my 4th year on the same soil and my yield just keep getting better and better. So anyone telling you that you HAVE to replace your soil is wrong. I get free worm castings from my worm bin and compost from them and my black soldier fly's, i do re amend my pots with some store bought amendments but I buy them in bulk and much more cost effective.

Im getting threw the whole grow with just Alfalfa meal in veg.blood fish bone Meal mid way and Banana ffj in flower.. yeah I ammend with volcanic rock dust.. and water in with seaweed. Lactic acid and pnsb on a rotation once a week... and that is it. Oh a bit of Dolomite lime to help with ph ...nothing else

Not emptied a pot in 2 years just pull out old plant.. ammend via top dressing watered in slightly and after a week a new plant goes in..simple. leave all roots etc in the soil. no till.... This will only work if your not using salts.. natural organic inputs only with microbes doing most the work..living soil..

I do it in my courrent grow for the first time, works good so far. Yes there can be downsides of using oldsoild, as Oreganoman explained. But I think it depends on your soilhealth and your way of growing, if it can be usefull und cost effectiv i think. I grow organic, use a mix of light mix, buffered coco, worm mix, biocharge and as long time fertilizer 3-4 Biotaps. For my courrent grow i mixed 50/50 old and new. I cut out the big rootparts, started preparing everything and then put them into the pots. Let them rest, reuse old rootparts and stabilize for around 2 weeks before transplant. Additional and very low give some fluid oraganic fertilizer for flower.

Good afternoon, In my opinion, you should use new soil; the costs/benefits do not justify its reuse. You can give it a second use by putting it in a composter...

i put it into the compost heap outside but its not like i nuke the soil with chemicals so i can get away with that. not worried about diseases as its going to be used for things like banking up the onions and flowerbeds ect

You can reuse harvest soil for a new grow cycle, but it must be properly cleared of old root mass and reamended with organic nutrients to prevent yield loss and disease.

I don't care what anyone says, new plants, new soil. Remediating old soil costs just the same as buying new soil. Old soil carries an increase of diseases, pests and will be loaded with left over wastes (salts) from the first cycle. Just throw it away/compost it in the garden, but do not risk an entire grow trying to economise on the most important factor for healthy growth......the soil.