Poison Ivy

Toxicodendron radicans

Common, very toxic vine. Possible to remove with the right precautions and equipment. Will take annual maintenance and removal to ensure it stays off the property.

Japanese Barberry

Berberis thunbergia

This shrub has been spreading across the northeast for a century. Thrives in sun and shade. Harbors ticks with a high rate of lyme and other tick borne disease. Shades out and covers the land, preventing native plants from growing. Leafs out in the spring before the trees do, killing native spring ephemerals.

Easy to control in small areas, but needs annual monitoring.

Has been banned from nursery sales in most NE states.

Japanese Knotweed

Reynoutria japonica

This species is listed by the World Conservation Union as one of the world's worst invasive species. It is a frequent colonizer of temperate riparian ecosystems, roadsides, and waste places. It forms thick, dense colonies that completely crowd out any other herbaceous species and is now considered one of the worst invasive exotics in parts of the eastern United States. The success of the species has been partially attributed to its tolerance of a very wide range of conditions; including drought, different soil types, variables oil pH, and high salinity. Its rhizomes can survive temperatures of −35°C (−31°F) and can extend 7 meters (23ft) horizontally and 3 meters (10ft) deep, making removal by excavation extremely difficult. The plant is also resilient to cutting, vigorously resprouting from the roots.

The invasive root system and strong growth can damage concrete foundations, buildings, flood defenses, roads, paving, retaining walls and architectural sites. It can also reduce the capacity of channels in flood defenses to carry water. Recent reporting suggests that Japanese knotweed is not nearly as destructive to structures as once thought. Damage appears to only occur at or near areas that were already compromised.

Japanese knotweed shades out other vegetation, grows over buildings and other structures, encourages fire, and damages paveds urfaces. (FROMWIKIPEDIA) Japanese Knotweed is pervasive in our area, and will be impossible to fully eradicate, is along both sides of the brook. It will need to be controlled by cutting on a frequent and regular basis. Preliminary site work will include excavating the root system to the best of our ability, however we cannot exterminate this plant due to its rigorous resilience.

Garlic Mustard

Alliaria petiolate

Found in recently disturbed areas, spreads from seed. Is considered allelopathic, meaning it exudes toxins from its roots to keep competitors at bay. Possible to manage with regular removal.

Mugwort

Artemesia vulgaris

Found in recently disturbed areas, spreads quickly through rhizomes and seeds. Possible to manage if attended to early in It's colonization. Spatterings of it around the property.

Japanese Stilt Grass

Microstegium vimineum

Found in recently disturbed areas, a quick spreading annual. Grows densely crowding out native species. With proper plantings of native perennials, leaving no bare soil, it is possible to manage.