yellow leaves

The Sedum kamptschaticum has been showing some signs of stress.  First, we were wondering if the slow release fertilizer burst in these high temps we were having, but at least this was not confirmed from a spot test of runoff conductivity (the logic here is that the fertilizer would increase salinity which can be measured as conductivity) We measured a range of 0.23-0.7mS....within an acceptable range. It may be drought stress.  The second pic reveals that we might also be having some mockingbird stress.  Something seems to be cutting some stems...

more sabotage- wasps!

Nothing about research is certain.  Now we think we know why platform "b2" has been giving us some confusing data....

umcp solar house

There is a modular greenroof on this year's entry in the DOE solar decathlon competition.  I am trying to put together some good stats on this roof with respect to water storage....

sedum album just greening up now

praying for rain

 

look at the drought carnage:

Wish I knew what this guy is eating:

umbc roof cont'd

Thanks to Citiroof, another fine greenroof got installed this week on the new Patapsco residence Hall addition. With the generous support of UMBC officials, the installation of monitoring equipment will soon follow (will post more about this in the future).  The previous post details the earlier stages of the installation.  Here below you can see the roof before and during planting as well as during and after watering. 

umbc greenroof!

the arrival and distribution of the substrate:

     
This photo (left) shows the tpo layer (extra thick!) and the tpo slip sheet and the materials arriving.












it all started with
the arrival of the crane: