Best places for floral photography in Washington DC?

I'm working on a blog that talks about where are the best places to take

photos of flowers and trees in the Washington DC metro area. I already know

about the National Arboretum in DC and Meadowlark Garden in Vienna. Can you

think of any places, public or private (requiring fees), that are photog

friendly? I'm sure there are quite a lot of unique places specialize in

certain flower displays, such as the Carillon Bell tower tulip field next to

the Iwo Jima Memorial. Please post samples if you have any.

 

Please refer to the following site for more detail on what I'm trying to do.

Thanks.

 

http://www.inspirationpointstudio.com/IPS/Gallery/636461A8-6F93-4B69-97C4-

8CFF67BDB37C.html

<P>Oops, broken link. See link to

<a href="http://www.inspirationpointstudio.com/IPS/Gallery/636461A8-6F93-4B69-97C4-8CFF67BDB37C.html" rel="nofollow" rel="nofollow" rel="nofollow"> Inspiration Point Studio. </a></P>

Try <a href="http://www.mc-mncppc.org/parks/brookside/" target="_blank"><b>Brookside Gardens</b></a> in Montgomery County.

How 'bout the Botanical Conservatory, that big greenhouse between the US Capitol and the Mall?

Kenilworth Park and Aquatic Garden: www.nps.gov/keaq/index.htm

 

Here are some of my photos from the Waterlilies Festival last summer: http://www.flickr.com/photos/karmanlee/sets/72157600948947058/