Kipper420 Posted January 4, 2019 Share Posted January 4, 2019 I've been shopping for compost today. Long and short I bought a couple of bags of the above. greenhouse growing. What's the concensus? Anyone regularly use it? Is it any good. Good points? Bad points? Thanks 1 Link to comment Share on other sites More sharing options...
vince noir rock n roll star Posted January 4, 2019 Share Posted January 4, 2019 love a bit of jacks magic ,luckily its come down in price at the range ..50 ltr 3.99 now ..well worth it ,very nice sifted composts enriched with seaweed i believe ..either way tis not too bad at all and certainly plants will enjoy it . 5 Link to comment Share on other sites More sharing options...
Amarillo slim Posted January 4, 2019 Share Posted January 4, 2019 used it a few times, good stuff. I did a side by side with potatoes in flex tubes one jacks magic one B&Q multi. The jacks was the clear winner. Having said that obviously different batches / different regions etc will vary. 4 Link to comment Share on other sites More sharing options...
Absurdist Posted January 4, 2019 Share Posted January 4, 2019 I've used it for a few years now and never been disappointed. Apart from when I mixed in some homemade compost and burnt my plants. Must have pissed in the compost bin too much. 100 % Jack's ever since. 6 Link to comment Share on other sites More sharing options...
elmer budd Posted January 4, 2019 Share Posted January 4, 2019 (edited) I have used it, but not for weed, my tomatoes especially had problems with getting roots through compacted soil and drainage. Maybe its me, but I wouldn't use it neat for this reason, I had to put some sand in for drainage. Edited January 4, 2019 by elmer budd 4 Link to comment Share on other sites More sharing options...
Billabong Posted January 4, 2019 Share Posted January 4, 2019 Jack's magic is good stuff, my go to compost. It has a lovely texture to it and the plants seem to love it 2 Link to comment Share on other sites More sharing options...
Kipper420 Posted January 5, 2019 Author Share Posted January 5, 2019 Great. super. Smashing. After a bit of reading here. I note some have had issues with it. Compacting or being plenty hot enough for younger plants. So now I'm thinking doing a 50/50 mix with compost for younger plants and tailing off the compost in the mix as I pot up. Do you guys use it neat from the get go? Link to comment Share on other sites More sharing options...
Rick Grimes Posted January 5, 2019 Share Posted January 5, 2019 I agree with those that said it can get a bit compacted and suffer with drainage. if I was to use it again I’d mix in a bit of coco to help drainage and it should be great stuff 6 Link to comment Share on other sites More sharing options...
Kipper420 Posted January 6, 2019 Author Share Posted January 6, 2019 Thanks Link to comment Share on other sites More sharing options...
Amarillo slim Posted January 13, 2019 Share Posted January 13, 2019 (edited) Used some in a seedling mix last year. Pasteurised some jacks and worm casts, then hydrated coir and perlite with weak high N nutrient solution and hydrogen peroxide. Mixed together, seedlings did ok.. Two weeks Edited January 13, 2019 by Amarillo slim 8 Link to comment Share on other sites More sharing options...
Kipper420 Posted January 13, 2019 Author Share Posted January 13, 2019 I have questions. Pasteurized how? What weak high N? Why h2o2? Thanks for response. Link to comment Share on other sites More sharing options...
Amarillo slim Posted January 13, 2019 Share Posted January 13, 2019 And the answers... I microwaved the hell out of it. Chempack no 2. To help prevent damping off. Really its better to just use coir/perlite and chemical feeds or Jiffys etc. This year I also plan to do a side by side with mycorrhizal fungi added. 2 Link to comment Share on other sites More sharing options...
Kipper420 Posted January 13, 2019 Author Share Posted January 13, 2019 I'd Be interested to see how that goes. This year I intend that use seaweed feed to help the roots in the plants early life and veg as well as compost tea. (Worm cast) Then when teens I will try nettle tea. Some Comfrey tea and more seaweed (maxicrop) maybe a bit of B&Q tomato food in flower. ill be potting up in a Jacks magic/JOHN innes multi purpose mix. Jacks dominant. Rain water all season. perlite is for r water retention right? I had a job to find a plain compost bale this year. There was plenty of ammanded compost mix. Water retention additive 6weeks to 3-4months feed additives . Added peat . Everything but vanilla........ I ended up with the innes multi. Which I think I'll sieve. After using it last season I found it got compacted and struggled to hold water at times when it was dryer. 1 Link to comment Share on other sites More sharing options...
stu sleeper 20vt Posted January 13, 2019 Share Posted January 13, 2019 ^Perlite is for air in the compost Vermiculite would be used for water retention. Link to comment Share on other sites More sharing options...
Amarillo slim Posted January 13, 2019 Share Posted January 13, 2019 (edited) yeah as stu says. I added perlite as these are on capillary matting. the mix is light and fluffy and when I fill the pots I do it loosely so their is plenty of oxygen in the pot despite its constant dampness. Maxicrop seaweeds are great. Edited January 13, 2019 by Amarillo slim 1 Link to comment Share on other sites More sharing options...
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