16 gardens in New Jersey checked against official websites: 8 display gardens, 8 arboretums, 4 botanical gardens. Most are listed in or near Chester Township, Short Hills, Somerset. 8 list free general entry and 1 charge admission; the rest are unrecorded or vary.
Admission and hours checked September 28, 2026. Prices may change.
Historic home landscape of designer Martha Brookes Hutcheson with five garden areas, fields and trails. Open daily from 8 am to sunset.
County display gardens in Somerset with a formal rose garden, perennial and sensory gardens inside an accredited arboretum. Free to visit.
Historic woodland garden and education site in Short Hills. Fall and winter hours are 9am to 4pm daily.
Public arboretum in Morris Township on 124 acres with about 2,000 specimen trees, 28 garden areas, meadows and trails. Open daily from 8 am to sunset.
28-acre former estate garden with terraces, woodlands, meadows and grottoes. Open Friday to Sunday from May to early November; tickets are sold in advance.
County arboretum in Clinton Township with a garden, gazebos, picnic grove and nature trails. Grounds are open daily and admission is free.
A county rock garden in Far Hills with alpine and woodland gardens on rock outcrops in a wooded stream valley. Closed Mondays; weekends closed November to March.
Five acres of historic gardens at Morven in Princeton, including a Colonial Revival Garden and old catalpa trees. The garden is free daily, sunrise to sunset.
State botanical garden at Skylands with 96 acres of gardens, a manor house and woodland trails. Entry is free; a parking fee applies on summer weekends.
Iris garden with about 14,000 irises in roughly 3,000 varieties; the irises flower in spring. No entry fee; a donation is suggested and there is no on-site parking.
Historic estate arboretum in Summit with gardens, trails and a visitors center. Grounds are open daily and free to explore, with a suggested donation.
180-acre university botanic garden with display gardens, natural areas and Helyar Woods trails. Open year-round except Mondays with no admission fee.
University campus arboretum with about 2,200 trees and shrubs and four historic gardens, including a Japanese garden. The grounds have no gate and no admission fee.
Six-acre garden in a Montclair neighborhood with a kitchen garden, a visitor center, and a fairy garden trail. The house itself is closed to tours.
Community arboretum with a Children's Garden of mostly native plants, a boxwood maze, an apiary and musical instruments. The Children's Garden is open dawn to dusk.
Morris County arboretum in Chester Township with formal and informal gardens, meadow paths and over 3,500 plant species. Open daily; a seasonal phone tour is available.
These are gardens we could check against their own official websites, not every garden in the area. “Free” refers to general garden entry, not parking, tours or special events. We do not show live opening status.
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