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June Lecture

VNPS Potowmack News

Check our Events Calendar for all upcoming events.  Events posted here generally reflect the next upcoming VNPS Potowmack chapter happening.

RESCHEDULED!: Plant Roots and their Fungal Partners

posted Jun 13, 2013, 8:13 AM by Marty Nielsen

Due to the severe weather alerts which have been issued for our area today,
we are rescheduling the June meeting until NEXT THURSDAY evening, June 20.
The same time, the same place - just one week later!

VNPS Field Trip: Mason Neck with Lisa Bright June 22

posted Jun 4, 2013, 12:29 PM by Marty Nielsen

Located on the Mason Neck peninsula, surrounded by Pohick Bay, Belmont Bay
and the Potomac River, this is an especially good place to witness many interesting Coastal wetland plants. We will walk through the trail along the wetland to the pond and to the marsh area to see an amazing variety of Coastal species, including some great patches of  lowbush and highbush blueberry, black huckleberry, swamp doghobble, serviceberry, possumhaw, and VA sweetspire. We will also find pickerel weed, arrow arum, three squares,  rose mallow, cardinal flower, smooth beggarticks, fringed and shallow sedge, sneezeweed, and many others.
 
Lisa is co-founder, Executive Director and Dharma Teacher of the Earth Sangha. She has been studying and propagating the native plants of the mid-Atlantic since 2000 and has spent many years collecting seeds from local forests and meadows for the Wild Plant Nursery.  She has covered Mason Neck and many natural areas in our region repeatedly in different seasons over the years, but says she always finds new species overlooked in previous seasons.

For more details and to reserve your spot please visit http://vnps20130622.eventbrite.com/

June Lecture - Plant Roots and their Fungal Partners

posted May 7, 2013, 6:50 PM by Jenn Truong   [ updated May 11, 2013, 7:15 PM by Marty Nielsen ]

Plant Roots and their Fungal Partners:
The underground view of plant communities  

Thursday, June 13, 7:30-9:00 pm
Green Spring Gardens, Alexandria VA

Living organisms within the soil decompose and recycle organic matter as they build good soil structure and promote growth of healthy plants.  Of paramount importance in this living community are fungi that form a symbiotic relationship with plant roots.  Via this symbiosis, called mycorrhiza, plant roots provide sugars to the fungi as the fungi transfer nutrients and water to the plant.  In addition, the mycorrhizal fungi promote resistance to plant disease as they improve soil and plant quality. How to best garden with the mycorrhizae will also be presented, as will contributions the mycorrhizae make to plant community structure.

Speaker Bio:
Paulette Royt earned a BS and MS degree in Biology from American University, and a PhD in Microbiology from the University of Maryland.  After a fellowship at the National Institutes of Health, Paulette joined the Biology Department of George Mason University where she taught numerous courses within microbiology and pursued research in pathogenic microbiology. Upon retiring from GMU, Paulette became a Master Gardener at Green Spring Gardens where she serves as a docent and speaker on many topics of horticulture.

May Lecture - Magnolia Bogs of the Fall Line

posted Apr 15, 2013, 1:34 PM by Marty Nielsen   [ updated May 7, 2013, 6:53 PM by Jenn Truong ]

Magnolia Bogs of the Fall Line
May 9, 2013. 7:30-9:00pm
Green Spring Gardens, Alexandria, VA.


Rod Simmons, Natural Resource Specialist, City of Alexandria Natural Resources Division.

In 1918, W. L. McAtee described the “magnolia bogs” as a distinctive habitat present in a few dozen places on the innermost Coastal Plain (near the Fall Line) in the Washington, D.C., area. Occurring where cool water seeps from hillside gravel deposits, these specialized wetlands are characterized by the presence of the native sweetbay magnolia (Magnolia virginiana) as well as other distinctive plants, such as peat moss (Sphagnum) and poison sumac (Toxicodendron vernix). While many of McAtee’s localities have been destroyed or badly degraded by development over the past decades, a few good examples remain. This natural community of VA is now Critically Impaired globally and statewide, G1/S1.

Local Plant Sales

posted Mar 29, 2013, 12:27 PM by Marty Nielsen   [ updated Mar 29, 2013, 12:28 PM ]

If you can't get enough of plant sales - I know I can't - here's a listing of all the area native plant sales we could find.


April Lecture - Landscaping with Native Groundcovers

posted Mar 14, 2013, 9:02 AM by Marty Nielsen   [ updated Mar 14, 2013, 9:04 AM ]

April 11th, 7:30pm-9:00pm
Green Spring Gardens Park

Come to our April lecture and hear Janet Davis,
owner and principal landscape designer of Hill House Farm and Nursery, as she
shares her expertise in bringing the intrinsic beauty of the flora and fauna of
Virginia’s natural habitats into the managed landscape. Janet will take a deep
dive into the use of native plants as groundcovers, to help you make a list of
plants for the upcoming plant sale season.

March Lecture - Using the new Flora of Virginia

posted Feb 25, 2013, 9:56 AM by Marty Nielsen

Using the new Flora of Virginia:

A manual to the manual
By co-author Chris Ludwig

Thursday, March 14
7:30 - 9:00 pm
Green Spring Gardens

VNPS programs are free and open to the public. No reservations are
necessary for lectures.

The 1554-page Flora of Virginia contains vast amounts of 

information to help beginners through experts understand and appreciate
Virginia's native and naturalized plants. During this talk, Chris Ludwig
will present many features designed into the Flora manual to help us
thoroughly understand these plants. 

You are encouraged to bring your copy of the Flora.

Chris Ludwig is co-author of the Flora of Virginia. He is the Chief
Biologist for Virginia's Department of Conservation and Recreation, where he
directs a team of botanists, zoologists, and ecologists in their quest to
identify all of the rare species populations and significant natural
communities in Virginia. He co-founded the Flora of Virginia Foundation,
formed to produce the first modern manual to the vascular Flora of Virginia.
The Flora was published in December 2012.

NOTE: If you do not yet have a copy of The Flora of Virginia, there are
still some copies available from the first printing. They can be purchased
on Amazon.

Potowmack Chapter of the Virginia Native Plant Society

PO Box 5311

Arlington, VA 22205

Field Trip to Holmes Run Gorge

posted Feb 8, 2013, 9:00 AM by Marty Nielsen

Saturday, February 23, 2013

 

1:00 pm - 5:00 pm

 

Field trip co-sponsored by the Ford Nature Center and the Potowmack Chapter of the Virginia Native Plant Society.

 

Leaders: Rod Simmons, Jennifer Millwood, and John Burke.

 

Bring:  Wear good shoes and bring lunch or snacks and water.  We'll walk mainly on trails, but the terrain is steep and rocky in places.  (Folks who aren't comfortable with steep grades can turn back when the gently rolling upland ridge trail of the first segment of the walk reaches the point where it becomes steep.)

 

Field trip is free and open to non-members. 

 

Please RSVP Jennifer Millwood at (703) 746-5559 or Jennifer.Millwood@alexandriava.gov.

 

The scenic Holmes Run Gorge is one of the most floristically and geologically diverse areas of northern Virginia.  Dramatic cliffs and massive outcroppings of bedrock abound, capped by ancient gravel terraces and deposits of the Potomac Formation.  The vegetation of the Gorge is diverse, with old-age forest stands and many species that are uncommon to rare in the region.

 

We’ll walk the section of the gorge from Columbia Pike downstream to the western edge of the City of Alexandria at Dora Kelley Nature Park.  

 

Directions: From western Fairfax County or Maryland, take the Capital Beltway (495) to Braddock Rd. (Rt. 620) north exit.  Follow Braddock Rd. north for several miles, crossing Little River Turnpike (Rt. 236) and Lincolnia Rd., to its end at Columbia Pike (Rt. 244).  Turn right onto Columbia Pike and stay in right lane for a couple of blocks to crest of hill above the Lake Barcroft Dam at Holmes Run.  Turn right onto Fairfax Pkwy. and make immediate half left onto parallel service road along Columbia Pike, park along service road, and walk downhill on sidewalk along Columbia Pike across the pedestrian bridge over Holmes Run to the parking lot at the park entrance.  Otherwise, continue past the Fairfax Pkwy. entrance on Columbia Pike to the parking area at the trail entrance just opposite the Lake Barcroft Dam.  (Parking lot can only be accessed from the northbound lane of Columbia Pike.)  This area is about halfway between Bailey's Crossroads and Annandale.

 

*Field trip cancelled for heavy-steady snow, sleet, or pouring rain, but not for snow flurries or drizzling rain.

 

For ARMN members, field trip applies per usual towards advanced training hours in botany, ecology, and geology.

Plant Communities in Landscape Design

posted Jan 20, 2013, 7:10 PM by Marty Nielsen

Thursday, February 21
7:30 ‐ 9:00 pm

VNPS programs are free and open to the public.   
No reservations are necessary for lectures. 

The wealth of resources now available on regional plant communities gives the 
landscape designer opportunities to move from simple/superficial plant  
arrangements to increased complexity in the assemblage of a design.   

The concept of plant communities enables the designer to explore natural systems and the power they have to help 
heal our fragmented landscapes.  

Susan Abraham, principal at Lush Life Landscape Design Associates, leads a 
team of environmentally-minded designers in the Northern Virginia region. 
Native plants are always the first choice for Lush Life designers. Susan is on 
the faculty of The George Washington University, teaching design and native 
plants in the graduate Landscape Design program. 

Winter Walk at Hemlock Overlook

posted Jan 10, 2013, 2:02 PM by Marty Nielsen   [ updated Jan 18, 2013, 1:09 PM ]

Field Trip to Old-Age Hemlock Forest at Hemlock Overlook Regional Park,
Fairfax County, VA 

Sunday, February 3, 2013

1:00 pm - 4:00 pm

Field trip co-sponsored by the Potowmack Chapter-VNPS and the Botanical
Society of Washington.

Leader: Rod Simmons

Bring: Wear good shoes and bring lunch or snacks and water. We'll walk
mainly on trails, but the terrain is steep and rocky in places. (Folks who
aren't comfortable with steep grades can turn back when the gently rolling
upland ridge trail of the first segment of the walk reaches the point where
it becomes steep.)

Field trip is free and open to the public. Please RSVP to
vnps.pot@gmail.com .

Directions: Take Ox Road (Rt. 123) or Fairfax County Pkwy (Rt. 7100) east to
Burke Lake Road (Burke Lake Road becomes Clifton Road south of Rt. 123).
Take Clifton Road southwest towards Clifton, but turn left onto Yates Ford
Road (Rt. 615) before the town of Clifton and proceed app. 1-2 miles to
parking area at entrance to Hemlock Overlook Regional Park.

*Field trip cancelled for heavy-steady snow, sleet, or pouring rain, but not
for snow flurries or drizzling rain.

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