I have found that when dealing with invasive plants, it really helps to observe first. What plants are present and what roles are they filling? Are they providing something for wildlife, even if it isn't ideal? This isn't to say you can't still remove the plants, but I feel it's usually more effective if you fill the role they were performing with another plant. Otherwise someone else will just show up to fill the gap. Another point to consider is that I often see people removing invasives from a large area and doing nothing to protect the soil. It can be the case that the seed bank will take care of things, but it's good to have a plan to ensure it doesn't erode either with planting, mulch or the like.
If the scope of the problem is a bit much, it's good to prioritize. For example, when I started stewarding the
land where I live, there were numerous invasives present and it felt overwhelming. So I looked at which have the greatest potential to harm if left unchecked, for example, areas where they were actively competing with native plants was higher priority. I also considered which would be easiest to address, the low hanging fruit if you will. So I chose to focus my
energy on those plants first.
Since I'm dealing with a plethora of invasives, I often focus on reducing their ability to reproduce and spread rather than always going for complete removal, since that is difficult with some of them and I can only do so much. Constant chopping or mowing is pretty effective at this, since they can't make seeds or even photosynthesize, if you're really on it. It's even working on the Japanese knotweed, which if you read about, people will tell you it's basically impossible to get rid of. I think it just takes time and persistence.
If you can find a use for the plants, so much the better. I ate some of the knotweed, but I regret not making medicine from the roots when I dug out all the big ones. I've made (and helped others make) so many baskets out of euonymus and ivy.
Firewood, hugels, fire by friction bows, and all manner of other crafts out of bush honeysuckle. I'm sure lots of the invasive plants have food,
medicinal or other uses. Not only is it rewarding, it feels more respectful to me. Plus, it's easier to get a group of people to help you remove invasives if you're offering them something like food, medicine, or materials for crafts to
boot.
I know invasives are discouraging and worrisome. I believe they often do need to be addressed for the sake of the native flora and fauna, but don't lose hope. The native plants are amazingly resilient and can even be allies in dealing with invasives. The area I've removed knotweed, euonymus, honeysuckle and garlic mustard from is now incredibly diverse and native plants are popping up everywhere. Almost none of them were planted by me. Goldenrod, sumac,
nettle and countless others have shown up and are even giving the remaining knotweed a run for its money. There were even some native spring ephemerals and a hazelnut that must've been hanging on for who knows how long under the rule of honeysuckle and knotweed, maybe decades. I just gave them some room to breathe. The number of native birds,
bees and other life is phenomenal. The invasive plants aren't even totally gone, and it's only been a couple years, so I can't wait to see what happens with more time and care. You don't have to remove all of them perfectly, just start doing what you can.