ACKBill
Bronze Member
Ralph:
The reason to collect clippings would be that in some cases, they can build-up faster than they can decompose. When they build up, they can form a very effective barrier to water, light and sometimes oxygen, that smothers the grass underneath. It depends on the individual soil conditions and things like how long the grass is (how much of the leaf blade is being removed). Sometimes it's a good idea to pick up the clippings and sometimes it's a good idea to let them stay on the lawn so that they can return the nutrients to the soil.
BILL
The reason to collect clippings would be that in some cases, they can build-up faster than they can decompose. When they build up, they can form a very effective barrier to water, light and sometimes oxygen, that smothers the grass underneath. It depends on the individual soil conditions and things like how long the grass is (how much of the leaf blade is being removed). Sometimes it's a good idea to pick up the clippings and sometimes it's a good idea to let them stay on the lawn so that they can return the nutrients to the soil.
BILL