Noxious is defined in the dictionary as "harmful or injurious to health or physical well-being". In the natural environment, it refers to non-native plants or animals that negatively impact ecological systems. Many such plants are labeled noxious weeds or noxious invasives. Kudzu vine is one of the south's most notorious noxious invaders. It was imported from China, and found the southern climate and lack of natural predators so agreeable it became known as the Vine That Ate The South.
I'm lucky there is no kudzu here, but there is some not too far away on the main road. I do have another invader that gives me fits, and it's a tree. Ailanthus altissima, also called "Tree of Heaven". This is another Chinese import that loves the mild climate, and the edge of my surrounding forest is lousy with it. This tree grows very fast, and before I had identified it, I began transplanting the shoots I found. There weren't any trees on my property in the beginning, and I was like...yeah, fast tree. Since then, not only did I learn that it's noxious, I learned why. Besides being a very prolific self-sower, it also sends out runner roots, and new trees grow at the ends. In no time, if they aren't kept mowed down, they will form a thicket and nothing else grows there. So I battle this damn thing constantly. It pops up everywhere! It looks a lot like sumac, which also grows here, so it can hide in a sumac thicket. Sumac is a native and a valuable wildlife resource, so unless it's growing where I don't want it, I leave it alone. But the ailanthus will eventually over-grow the sumac, and offers no value to the ecology.
So what prompted me to talk about noxious invaders? There is another that I really like but didn't have any around here. Mimosa. I realize it's considered noxious, but it's not as obnoxious as ailanthus, and it does have redeeming qualities. It's a pretty tree, and the beautiful exotic blooms attract hummingbirds. I actually bought (mail-order) some one of my first years here, but they didn't survive as transplants. I acquired some seeds but never got around to growing them.
A couple years ago, one of my gardening magazines profiled a new mimosa cultivar called "Chocolate Summer" with dark purplish brown foliage. Described as not as invasive as the species (cultivars usually are more civilized). So I went a-shopping, and found it at one of my favorite mail-order nurseries...Sooner Plant Farm. Being a new introduction, it was very pricey, but I had to have it. I could probably find it much cheaper now. It's a very striking foliage plant, and I do love purple leaves. I haven't seen the flowers yet.
This poor plant has been so mistreated. I couldn't decide where to put it so it sat too long in its nursery pot. It lost its leaves and I didn't know if it was still alive. I finally put it in the ground late that summer (2011), and the next spring it sent out new leaves. That same year (2012), I decided to move it again, and it again dropped it leaves, but came back this spring. So now I'm going to dig it up again to take with me when I move. At first I didn't know if I would, but decided I paid too much for it not to. It seems to handle all my meddling OK so hopefully it will again. I'm holding off digging it up as long as I can in hopes it will have gone dormant. Purple or red leaves don't change much in the fall like green deciduous plants so it will have to be an assumption that it's gone dormant.
I mentioned Sooner's. It's also listed to the left with a few other nurseries with which I've had good relations. I'm never disappointed with Sooner's quality, or their careful packaging of live plants.
tnt
Natureschild
5 days ago


























