Reply To: Compost very low in nitrogen and roots growing through cardboard

[Don Foley]

Hi again,

If its just leaves and grass, and depending on the quantities of each, basically what you have is a nitrogen enriched leafmould which is not the same as compost.
Leaves contain very small amounts of nutrients whilst grass contains about 3-4% nitrogen.
Leafmould is a soil structure improver but adds very little by way of nutrients.

Don.