This time of year, we have a lot of leaves to contend with, corralling and collecting them adds up to an enormous outdoor chore for anyone who has or is near even one large deciduous tree. If you’re not looking forward to spending your free time blowing, raking, or bagging all those leaves, there’s good news, you don’t have to. That’s right, not only is all that bagging and blowing unnecessary, keeping those leaves on your property will also do wonders for your garden, and help the community.
In a past article I wrote about plants, or living groundcovers, as an alternative to mulching. If you like plants already, then talking about more plants sounds even better. The mulch I was talking about is the typical brown, black, or natural “hardwood” mulch we are accustomed to. Hardwood is in quotes because in a lot of cases, we have no clue what the material is we are spreading all over our property. Unless the mulch is a premium bark or root mulch, the dyed material that most of us use, made of recycled and salvaged materials, remains unknown. So, it looks great and now because it’s recycled, salvaged and ecofriendly, it sounds great too. But like a lot of things, we were told is good for us, we find out that it isn’t, and more than that, it can be harmful.
Some of this material may contain scraps of treated or manufactured lumber materials and these types of materials can contain various heavy metals. Although the dye used in most mulching operations is safe, the materials they are covering up may not be. It can do some of the same jobs a good mulch can do, such as maintaining a more uniform soil temperature throughout the year, and it may prevent some weeds from growing, which is debatable, but it doesn’t really add much to the soil or help anything else. However, the natural leaf litter that falls to the ground from the trees in our area is a far cry from the dyed wood that we use as mulch. Ideally, what we mulch with in one season would be gone by the next, and the addition of new mulch would be a welcomed event by flora, fauna, and our eye. But because our mulch is wood, it doesn’t breakdown that quickly. This mulch piles up over time. I have seen places in our own common areas as well as residents’ lots where the mulch can be as much as 8” deep. Piled up around the base of plants and doing more harm than good. I’ve seen it piled so high that it causes drainage problems, keeping water against the foundation of a home when it crusts over.
Leaves left on the ground look messy and can convey a message that no one cares. Some may disagree, but there are some places in the communities that we pick up leaves so quickly from week to week, we lose that “fall” feeling when driving through. But the point isn’t to just let leaves lie where they fall or end up, the idea is to use what nature is giving us to benefit our gardens, community, and local environment, instead of sending them off to the dump. In doing so, we are reducing waste and saving energy.
Why are leaves so good and what are they good for? Leaves are a natural soil builder, they reduce the need for fertilizer on our lawns and gardens, and they offer excellent winter insulation for plants, animals, and insects. You may be able to get away with not chopping up your leaves in some areas, but for turf areas, you have to mow/mulch them, too thick will be detrimental to your lawn. Any extras can go into your garden or landscape beds, and even here you may like the look better or they may sit better if they are chopped with a mower, bagged, and then dumped in your beds. Just like any other mulch, you can have too much, but it takes a lot of leaves to make a shredded layer 2” thick. If you have smaller or groundcover type plants, you may have to go with a thinner layer. As I mentioned, this type of mulch doesn’t just provide protection for plants, but they also provide winter refuge for salamanders, turtles, and toads. Several butterfly and moth species also overwinter in leaf litter. Why go to the trouble of inviting them to your garden in the growing season, only to throw them away (or their nesting sites) with the leaves in the off season.
Finally, if you’re just not ready to make the transition, think about composting your leaves. This is a great way to take advantage of a lot of the benefits of fallen leaves if you have the room on your site. A great leaf compost is hard to come by and not readily available in our area. Leaf compost has a darker color and can pass for a “real” mulch. I’ve heard of some people that compost their leaves in the bags that they’ve collected them in. You can add a little moisture to the bag, and if you have it, a handful of existing compost or healthy garden soil. By the time spring comes around, you have some great compost to add to your garden. |
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