Invasive plants

Bush Honeysuckle (Lonicera tatarica):

• Tartarian honeysuckle has ovate, opposite, blue-green leaves

• It is multi-stemmed and can grow up to 3 meters

• The flowers develop in pairs in the axils of the leaves in May and are tubular with colors ranging from white to pink to red

• Bush honeysuckle is native to Eurasia

• It has been hypothesized that bush honeysuckle may produce allelopathic chemicals and reduce the germination and growth of surrounding vegetation

• Bush honeysuckle leaf out earlier than many native species and hold their leaves longer than most native vegetation (until November), which effectively shades out surrounding plants

Garlic Mustard (Alliaria petiolata):

• Garlic mustard is a 12-40 inch forb

• The basal leaves of garlic mustard are kidney shaped and have scalloped edges

• The stem leaves are alternate, sharply toothed, and triangular

• The leaves, when crushed, smell distinctly like garlic

• Garlic mustard produces a single flower stalk in April to June

• The flowers have four white petals and are 6-7 mm in diameter.

• It is hypothesized that the secondary compounds produced in garlic mustard affect the germination and growth of surrounding native plants

• Garlic mustard also has no native predators in the U.S. whereas there are many insects in Europe that each this plant species