@12e2f193 Almost all of the beds (except the asparagius beds which gets well rotted manure) are topped up with the spent compost from the potato tubs.  We rely on the worms to take this compost down over winter and supplement the beds with blood, fish and bone in the spring.  The tubs we use for aubergines, cucumbers and potatoes get new compost each year. 

 @7afcdd0c thank you!