Friends of Princeton Open Space

Friends of Princeton Open Space Preserving land in the greater Princeton region, restoring degraded ecosystems, stewarding the land, maintaining trails, and providing environmental education.

Volunteer with us and be a part of our mission!

06/09/2026

🌸🐝 Look What’s Blooming This Week at the Billy Johnson Mountain Lakes Nature Preserve! πŸ¦‹πŸŒΏ

June is Pollinator Month, and the Preserve is alive with color, fragrance, and the busy work of bees, butterflies, beetles, and other pollinators.

This week's featured blooms include:

Water Lily – Floating blossoms provide nectar and pollen for insects while supporting the rich aquatic ecosystem of the Preserve.

Virginia Rose – Its open flowers make pollen and nectar easily accessible to native bees and butterflies.

Sweetbay Magnolia – One of our favorite native trees, its fragrant blooms attract beetles and other pollinators, continuing an ancient plant-pollinator relationship.

Foxglove Beardtongue – A favorite of bumble bees, whose size and strength allow them to reach the nectar hidden deep within the tubular flowers.

Wild Geranium – An important source of pollen and nectar for native bees and other beneficial insects in late spring and early summer.

Native plants are the foundation of healthy habitats. They provide the food and shelter that pollinators need, and in return, pollinators help sustain the ecosystems that support birds, wildlife, and countless other species.

πŸ₯Ύ Ready to see these blooms for yourself? Grab a trail map at fopos.org/trail-maps and take a walk today. You never know what you'll discover around the next bend.

🌳 Last Minute Call for Volunteers: TOMORROW Tuesday, June 9 πŸ’§ 9:00 AM – 11:00 AM | Watering Native PlantingsThe weather ...
06/08/2026

🌳 Last Minute Call for Volunteers: TOMORROW Tuesday, June 9

πŸ’§ 9:00 AM – 11:00 AM | Watering Native Plantings
The weather has been dry, and these young plants need a little extra care as they get established. Meet at the Mountain Lakes House parking lot to help water native trees and shrubs planted by volunteers this past fall. Species include blueberries, magnolias, oaks, hydrangeas, and hazelnuts. Bring a watering can if you have one.

πŸ”¨ 1:00 PM – 3:00 PM | Fence Repair
Meet at the Mountain Lakes House parking lot and help the team to repair fencing in the restoration site. We could use a few extra hands for this important work protecting wildlife habitat. Looking for an ongoing volunteer role? We're also seeking volunteers to join our Fence Monitoring Team to help inspect and maintain restoration fencing regularly throughout the season.

Please send us a DM or email [email protected] to let us know which activity you'll be attending.

Join us for one or both of these volunteer projects and help support our restoration efforts! Thank you for helping care for our local environment!

We are so thankful to the Deloitte  volunteers for making an impact that matters on
06/05/2026

We are so thankful to the Deloitte volunteers for making an impact that matters on

🌿 Mugwort Foraging This Sunday at 10 AM! 🌿Did you know mugwort has been used for centuries in teas, baked goods, and sav...
06/02/2026

🌿 Mugwort Foraging This Sunday at 10 AM! 🌿

Did you know mugwort has been used for centuries in teas, baked goods, and savory dishes? It's also an invasive plant threatening local ecosystems.

Join FOPOS and local foraging experts Matt and Shannon this Sunday at 10 AM at the Billy Johnson Mountain Lakes Nature Preserve for a hands-on Mugwort Foraging Event!

You'll learn how to:
🌱 Identify invasive mugwort in the field
🌱 Safely remove it from restoration areas
🌱 Discover its culinary uses and traditional history
🌱 Sample delicious mugwort recipes

Mugwort brings a unique earthy flavor to a surprising variety of foods. By harvesting this invasive plant, you'll help restore native habitats while exploring a new ingredient for your kitchen.

Come ready to learn, forage, taste, and make a positive impact on our local environment!

πŸ“ Billy Johnson Mountain Lakes Nature Preserve, Princeton
πŸ•™ Sunday at 10:00 AM
Sign up using the EVENTS link in our bio or at .fopos.org/events-programs

Let's restore balance to our ecosystems, one mugwort patch at a time!

Come volunteer on Saturday, May 30th with FOPOSHere’s a before/after of the work we’ll be doing this weekend... This nat...
05/28/2026

Come volunteer on Saturday, May 30th with FOPOS

Here’s a before/after of the work we’ll be doing this weekend... This native clethra (summersweet) shrub had become completely covered in invasive vines and had also outgrown its original protective cage. We recently freed it up and upgraded it to a larger 10-foot circumference cage so it can continue to thrive!

Come lend a hand clearing cages, removing invasive vines that are smothering native plants, and helping our native plantings grow strong πŸ’š

πŸ“ Mountain Lakes House Parking Lot
πŸ•™ Sat May 30th | 10 a.m.–12 p.m. & 1–3 p.m.
🌱 Sign up: fopos.org/getinvolved

Look what’s fruiting! Highbush blueberry is thriving in our 25-acre riparian restoration project site. This is just one ...
05/26/2026

Look what’s fruiting! Highbush blueberry is thriving in our 25-acre riparian restoration project site. This is just one of the many establishing native plants that were planted last fall.

Volunteer with us this Saturday at the land stewardship sessions as we continue caring for these young native plantings by removing invasive vines and weeds from protective cages and around plant bases.

Last week, our interns began freeing native summersweet shrubs from invasive Japanese honeysuckle along the lakeshore and there’s still more work to do!

πŸ“ Meet at the Mountain Lakes House Parking Lot
πŸ•™ Volunteer sessions: 10:00 a.m.–12:00 p.m. and 1:00–3:00 p.m.
🌱 Sign up to volunteer at fopos.org/getinvolved

Come lend a hand as we help free the trees, upsize protective cages, and support the long-term health of this restoration site. The stewardship and mitigation techniques you’ll learn can also be applied to restoration projects in your own backyard!

🌿 UPCOMING EVENTS 🌿Join us for community land stewardship, wildlife exploration, and hands-on learning!πŸƒ Nature WalkπŸ“… Fr...
05/21/2026

🌿 UPCOMING EVENTS 🌿
Join us for community land stewardship, wildlife exploration, and hands-on learning!

πŸƒ Nature Walk
πŸ“… Friday, May 22, 10 AM – 12 PM
Take a guided walk through nature and enjoy the beauty of the season.

🧀 Land Stewardship Volunteering
πŸ“… Saturday, May 23, 10 AM – 12 PM & 1 PM – 3 PM
Help care for the Preserve through hands-on land stewardship.

🐦 Spring Bird Walk
πŸ“… Saturday, June 6, 8 AM – 10 AM
Explore local birdlife and learn bird identification tips on this guided walk.

🌱 Foraging Invasives as Stewardship: Mugwort
πŸ“… Sunday, June 7, 10 AM – 12 PM
Learn how foraging invasive plants can support ecosystem stewardship. Sample some recipes made with mugwort.

✨ Come connect with nature and community. View our events calendar and register at fopos.org/events-programs

Address

57 Mountain Avenue
Princeton, NJ
08540

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