Think Big Picture here. You have your beautifully landscaped garden or are working towards it. Your plants are thriving and you are in a routine of loving maintenance. To keep your garden happy, you need to keep your eyes out for intruders, of the plant variety. Now, is the time to add INVADERS to your knowledge gardening bucket. Understanding what to look for and why will be 100% beneficial the success of your garden and ultimately your bottom line.
Black Swallow-wort

is a vigorous twining vine that envelopes trees and shrubs. It spreads by wind-blown seeds and below ground. It forms thick stands which eliminate all native vegetation in its path. To make matters worse, it also confuses the Monarch Butterfly which recognizes Black Swallow-wort as Milkweed. Unfortunately, the Monarch’s eggs die if they are laid on Black Swallow-wort. To control without using pesticide you can dig up small plants with all the roots. At a minimum, pick off all green pods to prevent dispersal. To control using herbicides and spray on the leaves.
Porcelain-berry

has a very pretty blue/purple/white fruit, but don’t be fooled, this plant can take over! It is quick spreading forming carpets over open ground or heavy walls over forest edges. The grape-like leaves are borne on thin, woody vines which grow 15 – 20 feet a year! To control without pesticide you can clip and untangle some of the webs (before fruiting) 2- 3 times a year. Its root system is impossible to dig out. To control with a herbicide, spray leaves with herbicide before fruiting.
Japanese Knotweed

was imported into this country for its novel late summer flowers. It was also used for erosion control. It aggressively spreads along waterways and highways forming pure stands. Japanese Knotweed grows in sun or shade and eliminates all native plants in its path. It is a bushy shrub-like plant with heart-shaped leaves and attractive fleecy sprays of white flowers in late summer. It survives droughts. It is difficult to eradicate. Non-chemical; you can dig up young shoots. Cut back every month between May – October. With herbicide use Triclopyr injection to cut stems to the entire colony. Repeat as needed next year.
Have you found any of these invaders in your garden? How did you get rid of them? Share with us below or ask any questions too.