Rejuvenating used container compost

QuestionsHow to growFlowersSpring BeddingRejuvenating used container compost
David Clark asked 10 years ago

Over the last 2 years, I’ve grown a lot of veg and summer bedding in containers and so have about 2 cubic metres of spent compost, made up of bought in proprietary peat based product and home made general stuff (grass, plant shreddings, green kitchen waste etc.). How best can I re-use this? Ideally, I would like to rejuvenate it in some way so that I can use it in this year’s veg and summer plant containers. I don’t have a lot of empty bed space to dig it in, as most of this is deeply mulched with bark.

1 Answers

Gerry Daly Staff answered 3 years ago
There is no reason not to re-use this old compost. Vine weevil might be present but it can get into plants with new compost too, so take precautions if they might be present.

There is a small chance of more root-rot fungi but generally this is not significant.

Simply mix in some fertilizer and re-use.

Such compost is best used with some soil mixed in, which acts as a buffer, up to two-thirds soil.