Veg Trug Compost Replacement

stewyfizzstewyfizz West BromwichPosts: 140
Used a veg trug for the first time last year. Everything did ok. Decent crop of salads, carrots and parsnips. However is it wise to replace all of last years compost or replace just the top layer? Or even just give it a mulch? 
Gardening. The cause of, and solution to, all of my problems.

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  • DovefromaboveDovefromabove Central Norfolk UKPosts: 50,626
    How deep is it ... what sort of compost did you put in it to start with?
    'There's a flower that shall be mine, 'tis the little celandine.' W Wordsworth





  • LynLyn DevonPosts: 11,701
    Also depends on what you intend to grow in it this year, I always like to rotate veg crops, so I wouldn’t grow anything this year that you grew last without changing the compost.  That doesn’t apply to salad crops but I wouldn’t grow parsnips and carrots again this year. 
    Gardening on the wild, windy west side of Dartmoor. 
    Freedom’s just another word for nothing left to lose. 
  • stewyfizzstewyfizz West BromwichPosts: 140
    It is fairly deep, over a foot and half in the middle. I used peat free multi purpose last year which worked well. I was hoping to do 'same again' as these are the veg we eat most.
    Gardening. The cause of, and solution to, all of my problems.
  • DovefromaboveDovefromabove Central Norfolk UKPosts: 50,626
    Multi-purpose compost isn't really suitable for long-term growing ... if you were satisfied with the crops you got last season then I'd empty out the trug ... use the old compost as a mulch on a bed somewhere and replace with new. 
    'There's a flower that shall be mine, 'tis the little celandine.' W Wordsworth





  • Lizzie27Lizzie27 Bath, SomersetPosts: 2,197
    I would try emptying out half the trug and refilling with John Innes No.3 which is a lot more "gutsy" than multi purpose compost. Mix the two well together. It's worth sowing the same veg again if that's what you eat the most but when the crops start to deteriorate, then you will need to replace all the compost. 
  • DovefromaboveDovefromabove Central Norfolk UKPosts: 50,626
    I’m just a bit concerned that loam based compost might be too heavy for a trug if it’s the sort that’s raised up on legs. Some I’ve seen don’t look very sturdy.   :/
    'There's a flower that shall be mine, 'tis the little celandine.' W Wordsworth





  • stewyfizzstewyfizz West BromwichPosts: 140
    Its very sturdy so i'll try a mix of john innes no3. See how it goes. :)
    Gardening. The cause of, and solution to, all of my problems.
  • Allotment BoyAllotment Boy North London Posts: 1,674
    I agree a 50:50 mix with JI 3 and for a real boost use a compound fertiliser such as Vitax Q4. Veg are hungry feeders and you take away those nutrients when you harvest the crop.
    AB Still learning
     Many mists in march -many frosts in May
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