Maintenance is a great way to close the nutrient cycle and provide healthy habitat for soil microorganisms. There is really no reason that any yard debris should ever leave your property. If you are up to it, you could even rent a chipper to take care of any fallen branches.
Chop and drop
Generally when I mention the term ‘chop and drop’, I get puzzled looks. It’s a perfect way to deal with the green waste produced on site. Once you prune an herbaceous plant, brush the surrounding mulch to the side, cut the debris into 2-3″ chunks, then cover over with the mulch that you brushed to the side. You can leave even larger chunks if you’d like; just know that it will take a bit longer to break down, and will be easier to see from far away. The smaller chunks visually blend in with the mulch a lot better.
A cool bonus to chop and drop is that it tells you how biologically active your soil is. After a few days peel your mulch back and see how your debris is doing. If it is breaking down quickly, you have healthy soil biology. If it is taking a long time, your soil may not be as biologically active as it could be. It might be a good time to do an application of compost extract.
Leaving or mowing leaves
Don’t forget about the great qualities of leaves. Instead of bagging and disposing of them, mow over them in your lawn area. If you go over them a couple of times they will turn into a powder that works its way down into your grass. (Most of their bulk is air, so they break down to nothing.) You could pile them on a bed as mulch, throw them into your compost as a great fungal food, or put them in composting bags where they will break down over the winter into a nice compost for spring. Load up the bags in fall, moisten them and forget about them.