More Green Roofs for Parks Recreation Centers

Ten Parks recreation centers, including three in Brooklyn, will be getting green roofs. The planting will be based on two regional plant communities:
Each system will include 12 experimental plots, 85 square feet each, with soil depths ranging from 4 to 6 inches.

Each plot will be planted with a species mix from two native plant communities, the Hempstead Plains (Long Island) and Rocky Summit Grasslands (e.g. Bear Mountain) of the New York City region. These models were chosen because they are meadows, have plants that can tolerate the desiccated soils and high winds typical of roof conditions, and provide prime foraging for native insects and birds.

- A Green Roof Is Coming To A Recreation Center Near You!, Daily Plant, 2010-05-06
Here are the species they've specified from each community:

Hempstead Plains:
  • Schizachyrium scoparium, Little bluestem (Grass)
  • Panicum virgatum, Switchgrass
  • Sorghastrum nutans, Indian grass
  • Baptisia tinctoria, Yellow wild indigo
  • Solidago nemoralis, Gray goldenrod
  • Asclepias tuberosa, Butterfly-weed
  • Eupatorium hyssopifolium, Hyssop-leaved boneset
  • Rubus flagellaris, North Dewberry
Rocky Summit Grasslands:
  • Carex pensylvanica, Pennsylavania sedge
  • Danthonia spicata, Poverty-oat grass
  • Deschampsia flexuosa, Common Hairgras
  • Lespedeza capitata, Bush-clover
  • Lysimachia quadrifolia, Whorled loosestrife
  • Cunila origanoides, Stone-mint, Dittany
  • Solidago odora, Licorice-goldenrod
  • Vaccinium angustifolium, Low-bush blueberry
Cunila origanoides is one of the three native plant species that were given away at the kickoff for NYC Wildflower Week last Saturday in Union Square. It's in the Lamiaceae, the Mint Family. Its leaves smell like oregano. (The other two species were Thalictrum pubescens and Hystrix patula.)
I would expect that these plants have been propagated at the Greenbelt Native Plant Center. I'm trying to confirm that.

Related Content

Greenbelt Native Plant Center, Staten Island, 2010-05-03
NYC Wildflower Week, 5/1-5/9, 2010-04-29


A Green Roof Is Coming To A Recreation Center Near You!, Daily Plant, 2010-05-06


Adrian Ayres Fisher said...

Hello Flatbush Gardener. Found you through the nature blog network.

Query: some of the species you mention for the green roofs develop very deep root systems. Will the roots grow horizontally? I thought that's why sedums are so popular.


Xris (Flatbush Gardener) said...

Good question!

At least part of this is a trial to see how well these species perform on green roofs. I'm hoping that some folks involved in the project can weigh in.