Green Roof Plant Trials: more plants on gazebo testing facility
In May (two years after the original planting of the NATS gazebo), the east side was planted with new candidate species. Some of the species will be studied on BCIT's Elevated Research Platform (ERP), scheduled to be installed in September. The other species are natives that are new to the nursery such as: Androsace septentrionalis, Aster alpigenus, Carex inops, Erigeron peregrinus, Penstemon convertus, Poa secunda, and Saxifraga bronchialis.

Christine and Andrea
Andrea and Christine planting according to The Very Official Plan (May 18, 2007).

Divergens and Lithodora
A colourful roofscape of red-tinged Sedums, blue-flowering
Lithadora diffusa ‘Grace Ward' and the yellow Genista pilosa. Currently, the Penstemons and Eriophyllums are looking fantastic.  They have really impressed us with their perfomance. 

Background: NATS On-Site Green Roof Gazebo
In spring 2005, a gazebo was erected in the north-west corner of NATS Nursery in order to study plant performance in situ. The four sides of the gazebo are planted with different combinations of plants, in 3" green roof growing media. This structure permits the observation of plant performance and survivability, and allows us to trial new species in the extreme conditions often occuring on rooftops.
Gazebo Green Roof