HCP's Pocket Wetland Special Features
Invasive plants
-Bush Honeysuckle (Lonicera tatarica):
o Tartarian honeysuckle has ovate, opposite, blue-green leaves
o It is multi-stemmed and can grow up to 3 meters
o 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
o Bush honeysuckle is native to Eurasia
o It has been hypothesized that bush honeysuckle may produce allelopathic chemicals and reduce the
germination and growth of surrounding vegetation
o 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):
o Garlic mustard is a 12-40 inch forb
o The basal leaves of garlic mustard are kidney shaped and have scalloped edges
o The stem leaves are alternate, sharply toothed, and triangular
o The leaves, when crushed, smell distinctly like garlic
o Garlic mustard produces a single flower stalk in April to June
o The flowers have four white petals and are 6-7 mm in diameter.
o It is hypothesized that the secondary compounds produced in garlic mustard affect the germination and
growth of surrounding native plants
o Garlic mustard also has no native predators in the U.S. whereas there are many insects in Europe that
each this plant species

Bush Honeysuckle, Photos by Juliet Kaye

Garlic Mustard plant, Photo by
Madeleine DeManche

Garlic Mustard flowers, Photo by Juliet Kaye
References and additional reading
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