- Longwood Gardens 
- This jewel situated near the Philadelphia and Lancaster regions, is a place of unparalleled beauty. Often referred to as the world's premier horticultural showplace, Longwood Gardens' 1050 acres of natural woodlands, majestic gardens, opulent conservatories and dancing fountains are open every day of the year.
- Philadelphia Flower Show
- The 2011 Philadelphia International Flower Show was a great success, taking place from March 6th to the 13th and drawing over 230,000 attendees. The "Springtime In Paris" theme greeted attendees with millions of blooms and even a 37-foot-tall Eiffel Tower. With over 170 vendors, Philadelphia is already looking forward to next year's show, "Islands of Aloha."
- Bartram's Garden 
- This is America's oldest living botanic garden surrounded by the urban bustle of Philadelphia. You won't believe you are in the city when you see the wildflower meadow, majestic trees, river trail, wetland, stone house and farm buildings overlooking the Schuylkill River, and the historic botanic garden of American native plants.
- Brandywine River Museum 
- The museum is surrounded by wildflower gardens in glorious color from spring through autumn. The gardens are meant to preserve, protect and share American artistic, natural and historical resources, principally of the Brandywine region.
- Wyck 
- This garden’s main focus is on conservation and propagation of historic plants. There is growing consensus that the rose collection held at Wyck is one of the most important in America, being an intact 19th century garden and not a modern restoration. It is also used as a tool to educate and delight both serious gardeners as well as casual visitors.
Lehigh Valley 
- Graver Arboretum of Muhlenberg College 
- The arboretum serves the educational mission of the college by providing an outdoor space for course activities, taking students out of the classroom and into the environment. Others enjoy the arboretum by hiking through the inviting trails or by finding a quiet place to relax and reflect.
- Rose Garden Park 
- The Rose Garden is known for its more than 100 varieties of the fragrant flowers, with the bandshell hosting a series of free concert performances every summer.
- Malcolm W. Gross Rose Garden 
- Allentown's old-fashioned Rose Gardens, with many beautiful flowers and ponds filled with water lilies, are known for their All America Rose Selections. With many different varieties of roses, it offers sights for all flower enthusiasts.
Dutch Country Roads 
- Liberty Forge Arboretum 
- Liberty Forge Arboretum is a registered member of the American Public Gardens Association that offers a sense of solitude and beauty. Nestled among the rolling terrain of the golf course, professionally landscaped gardens offer splashes of color and fragrance among ponds and fountains.
- Hershey Gardens 
- Located on 23 acres of horticultural excellence, you can enjoy spectacular seasonal displays, theme gardens and more than 7,000 breathtaking roses. The family will love the popular Butterfly House and the Children's Garden that's filled with surprises at every turn.
- Botanic Garden of Western Pennsylvania 
- The site for the new garden is located on 452 acres near the southern end of Settler’s Cabin County Park, just 20 minutes from downtown Pittsburgh. While it is not currently open, it is under construction and will be re-opening soon!
- Chatham College Arboretum 
- Chatham’s 39-acre campus encompasses a 32-acre arboretum featuring 115 different varieties of species, including Japanese Flowering Crabapple, River Birch and Kentucky Coffee tree. The Arboretum provides an outdoor classroom for students, as well as an inviting place to stroll and to meditate.
- Phipps Conservatory and Botanical Gardens, Inc. 
- The botanical gardens feature lush tropical plants, palms, orchids, ferns and desert plants, as well as many special flower shows, exhibits and butterflies. Outdoor gardens and collections include the children's Discovery Garden, Japanese Courtyard Garden, bonsai, butterflies, perennials, annuals, herbs and aquatics.
- Goodell Gardens and Homestead 
- The Heritage Garden boasts 40 specimens of Azaleas and Rhododendrons, 60+ tree species (including Dawn Redwood, Jeffery Pines, Franklinia, Carolina Silverbell, and a champion Paper Birch), a wonderful array of native PA plants and much more.
- Erie Zoo Gardens 
- Through the winding walkways, one will encounter beautifully landscaped grounds with over 2,500 specimens of 600 species of plants. Various gardens include the Butterfly gardens, the Greenhouse, and the great gardens at Kiboka Outpost where the rhinos roam.
- Lake Erie Arboretum at Frontier Park 
- Lake Erie Arboretum contains more than 250 varieties of trees and is open 365 days a year. Hiking/ biking trails, a meditative labyrinth, a playground and tennis courts as well as sled riding hills during the winter are all available in the arboretum, making it an educational and recreational oasis for all visitors.
Upstate PA 
- Marywood University Arboretum 
- The Marywood University Arboretum offers many events throughout the year including educational activities, community workshops and special tours and events. The arboretum is open daily for quiet nature walks and offers a wide array of different trees, flowers and plants to be seen.
- Reminiscent Gardens 
- Offering types of display gardens, they also have a wide variety of herb, perennial and annual plants for sale. Fresh cut flowers for weddings or any occasion are available and special garden tours and lectures can be given by request.
The Alleghenies 
- Arboretum at Penn State 
- The long-awaited construction of the first phase of the H. O. Smith Botanic Gardens in The Arboretum at Penn State has been completed and the project site, a tract of approximately 35 acres on Park Avenue, has become a new attraction at the University Park campus. The luscious gardens are open from dawn until dusk every day.
- 13th Annual Art in Bloom Spring Show
- Each year, the display features over 170 pieces of artwork by professional and amateur artists from all over Pennsylvania. Artwork is judged by an independent juror in five different categories, with awards given for each category, along with "Best of Show" and "Peoples Choice" awards.
Pennsylvania Wilds 
- Ekey Garden Museum & Ekey's Spring Floral Fling 
- Since 1916, the Ekey's Garden Centre and Museum has offered a great history of the gardening business and how it and horticulture have changed throughout the years. Come check out the wonderful flowers, plants and other features at this unique attraction.
Laurel Highlands 
- Laurel Hill State Park 
- Laurel Hill is surrounded by thousands of acres of pristine state park and state forestlands. A trail system invites you to hike and explore the park and observe the wide diversity of plants and wildlife. A beautiful stand of old growth hemlocks lies along the Hemlock Trail.
- A Garden Tour of Lewisburg 
- Check out Lewisburg Garden Club's second annual event, taking place on June 5th and featuring six magnificent local gardens. Along the tour route, some local artisans will be making demonstrations at several of the gardens.
- Spring Open House and Garden Extravaganza
- You'll experience the sights, sounds and scents of a beautiful spring day at the area's largest indoor spring garden show! The sound of running water will relax you while the colors and fragrances of spring will dazzle your senses with hundreds of vibrant spring flowers in full bloom
- Keithan Gardens 
- Located on a 1.5 acre tract along Sunbury’s riverside, the park still contains some of the exotic trees that Charles Keithan imported from around the world, as well as representative species of two of his favorite plants - azaleas and rhododendrons.