in full swing

lots of color and flowering.  Can't believe the Sedum album are flowering even though they are still red.

roots sampled May 20

Three step process demonstrated by Kelsey Farrish (thanks Kelsey!!!)

First select a random spot to sample: 

next, insert sampling device (go Orioles!)

remove sample, repeat (and repeat and repeat):

sedum species

Plants from Emory Knoll Farms, photo credit: Jonathan Moore

interesting roofs in the greater DC metro area

 Kudos to the DC nationals for having a greenroof
on their stadium (see right)!





and to this elementary school in Rockville (below).
This is a living roof installation.  Note how the
modules are covered when the white slips around
the edges are removed.

nested rain gauges installed

May 13... just in time for all the rain :)
Note how the runoff from the smaller gauge spills into the larger one at high intensity

vote for city neighbors hamilton

They want a greenroof on their school.
Check out their video (click on link)
Okay so the voting is over and another school got it, but this video is still awesome!

almost flowering

Sedum sexangulare has filled in quite a bit over the past two months and is getting ready to flower. They are a lot different compared to the photo I took in Feburary.