Spent yesterday morning on the rooftop of the pavilion at the Arboretum. Temperature: 45 degrees. Wind: 20mph. Weight of pebble bags: 50lbs. No hot tin roof here! Brrr!

The rooftop offered up these amazing views of the Arboretum which is leaping into spring no holds barred. Click for a larger version:

As you can see from the one picture, the rooftop is home to both grass and plants. We were working to re-soil the area – soil mixed with small pebbles, add fertilizer, and repair an area that had been erroded over the winter months. Underneath the pebbly soil is a tarp and under that is a layer of small cups that hold water for the grass and plants. It’s ingenious and pretty! Two of my favorite things!