Maryland Department of Natural Resources Bay Grasses in Classes
Bay Grasses in Classes
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The picture shows extremely healthy and abundant plants at Seneca Creek State Park.

In 2008, DNR added a new site at Gunpowder Falls State Park Hammerman Area. Students have exhausted all of the possible planting areas at Rocky Point, but the plants there continue to thrive. The grasses have extended into the golf course coves and is producing seed pods throughout each consecutive year’s planting area. Annual aerial surveys taken by the Virginia Institute of Marine Science (VIMS) continue to map grass beds planted there by students in the bay grass program. These sites will continue to be monitored as well as other sites from previous years throughout the summer. If the grasses continue to do well, we will continue to expand the planting areas in the future. We appreciate all of your hard work this season growing your bay grasses, and hope to see you next year.

A map of Bay Grasses in Classes Restoration Sites.

2008 Bay Grass Survival Chart

Location

Area
Planted
(m2)
Area still
vegetated
(m2)

Comments

St. Johns College
Severn River
(Anne Arundel County)

site established 2004
10m2 8m2
  • Only redhead grass (Potamogeton perfoliatus) was planted at the site.
  • The Living Shorelines project adds a new dimension to this bay grass restoration site.
  • Plants were heavily fouled but still very green under the epiphytes.
A photo of redhead grass growing to the surface in College Creek at the St. Johns site.
Redhead grass has grown to the surface in
College Creek at the St. Johns site.
Gunpowder Falls State Park Hammerman Area
(Baltimore County)
site established 2008
55m2 50m2
  • Redhead grass (Potamogeton perfoliatus), water stargrass (Heteranthera dubia) and wild celery (Vallisneria americana) were planted at this site.
  • Water clarity was excellent and most of the plants were more than 1 meter tall.
  • Many of the plants had seed pods beginning to grow.
Seneca Creek State Park
Clopper Lake
(Montgomery County)

site established 2003
28m2 10m2
  • Wild celery (Vallisneria americana) was planted at this site.
  • Water clarity was good, but hydrilla (Hydrilla verticillata) was abundant throughout exclosure.
  • Grasses continue to do well at this site, despite intense competition with hydrilla.
A photo of Wild Celery competing with hydrilla in Clopper Lake.
Wild Celery competes with hydrilla in Clopper Lake.
Horn Point
(Dorchester County)
site established 2004
5m2 3m2
  • Only redhead grass (Potamogeton perfoliatus) was planted at the site.
North Bay
(Cecil County)
site established 2004
14m2 8m2
  • Sago pondweed (Stuckenia pectinata) and wild celery (Vallisneria americana) were planted at this site.
  • Due to the severe wave action, the plants were located near the edge of the breakwater to afford some protection during storms.

For more information, contact Mark Lewandowski at 410-260-8634


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