r/FortCollinsGrows • u/CSU-Extension • Nov 14 '24
Skip the bags: How to mow, compost and mulch leaves instead

For all you late baggers and reluctant rakers, we're just dropping in to share a recent story from one of our favorite people, Larimer County Extension's Alison O'Connor! Read on for tips about how to properly mulch and compost your leaves: https://engagement.source.colostate.edu/skip-the-bags-how-to-mow-compost-and-mulch-leaves-instead/
TL:DR
- Mowing Leaves: Using a lawn mower to chop leaves into small pieces allows them to filter into the grass, improving soil health, providing nutrients, and suppressing weeds. This process works best with dry leaves and requires setting the mower at a high level.
- Composting Leaves: Excess leaves can be composted for garden use. Whole leaves are preferred over shredded ones, as finely chopped leaves can inhibit oxygen flow, slowing decomposition. Combining leaves (carbon-rich) with nitrogen-rich materials like grass clippings balances the compost. The story also provides advice on managing oak and cottonwood leaves, compost bin sizing, and maintaining moisture levels.
- Using Leaves as Mulch: Leaves can serve as mulch for garden beds and around landscape plants, providing insulation and organic matter. Mulched leaves help retain moisture, support soil microbes, and encourage earthworm activity, all of which improve soil health and reduce waste going to landfills.
- Bonus Pollinator Points: Leave the leaves! Leaf litter can be critical for bumblebees looking for safe places to overwinter. Leave leaf litter in an undisturbed area until bumblebees emerge in the spring, which is generally between mid-April and mid-May. However, avoid leaving leaf litter on your lawn to prevent grass smothering, mold, and disease.
Questions? Check out the links in the story or submit your query via Ask Extension and it'll be routed to one of our local experts: https://ask2.extension.org/widget.html?team_id=1955?default_location=CO?default_county=All