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  Stoneleigh: a natural garden
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- before you go
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make a date with nature

With 23,000+ acres of land across two states and 13 counties, there’s a lot to explore.
events & news
- events
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find yourself outside

From yoga to bird walks to volunteering, we offer events year-round.
what we do
- save open space
  why protecting land matters
  how conservation works
  community green spaces
- care for nature
  caring for our preserves
  caring for our garden
  stewardship planning
  bird conservation
- connect people to the outdoors
  at our preserves & garden
  in your community
  nature for all
- about us
  mission & history
  staff & leadership
  our fiscal approach
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why protecting land matters

Every acre we save cleans and cools the air we breathe, soaks up floodwaters, provides wildlife with habitat, filters the water we drink, and brings humans improved health and joy.
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- partner
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- get involved
  our NextGen community
  in your community
  in your own space
donate now

More than ever, “forever” depends on what we do today. Together we can make a difference.
resources
- for landowners
  conservation easement landowners
  sell or donate your land
  conserve your land
- for municipal partners
  Growing Greener: Conservation by Design
  planning & landscape architecture
  land conservation consulting
  open space ballot referendums
  PECO Green Region
- land management
  stewardship planning
  stewardship handbook
  other resources
- for gardeners
  smart plants choices
  helpful habits
  bring life to your garden
natives are nice

Native plants feed native insects, which are the foundation of life on this planet. Every yard, garden, and patio pot needs more natives.
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Tunes on the Terrace: Arcana Music Ensemble

Join us for a concert in the garden. In collaboration with Bowerbird, the Arcana New Music Ensemble will perform the music of Pauline Oliveros’s works […]

June 13 @ 5:30 pm - 8:00 pm

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Bowerbird presents ‘Follow the Sound’

Stoneleigh: a natural garden

Enjoy the magic of a summer evening stroll in the garden coupled with live musical vignettes. Join us for an outdoor musical experience in which […]

June 20 @ 6:00 pm - 8:30 pm

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Friday Night Lights

ChesLen Preserve

music. without walls. Featuring The Flying Komorowski Brothers with opener Madisun Bailey. Warm summer breezes, live music, locally crafted cider, wine and beer, s’mores, and […]

June 26 @ 7:00 pm - 10:00 pm

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NextGen