The park's arboretum was conceived by Theodore Wirth in 1907 and by 1915 the bulk of the collection had been planted. Many of the original plantings still survive. Major collections include roses and crabapple trees. Heritage trees, defined as the oldest or largest specimen found within the city limits, include the Cucumber Magnolia, River Birch, Golden Larch, Mugo Pine, White Fir, Austrian Pine, Japanese Yew, and Wafer Ash.
Rose Gardens
This is the second oldest public rose garden in the United States and was designed by the Park Superintendent Theodore Wirth. It is in size and at peak season the garden can contain as many as 60,000 blooms. Construction of the garden occurred during 1907-08. An official AARS test rose garden was added in 1946. The garden features more than 4000 plants and 250 species. Two fountains border the garden; the bronze-and-marble Heffelfinger Fountain is from the Villa Montalto near Florence, Italy and donated to the Park Board by Frank Heffelfinger in 1944. There is a cherub surfing on a dolphin at the top, surrounded by satyrs. Human faces on the pedestal base show the progress of age.
Perennial Garden and Perennial Trial Garden
This garden was built in 1962-63 when the Phelps fountain was moved from the downtown Gateway to the east end of this garden. Two long perennial borders edge this garden and six annual beds are featured between these borders. Many wedding ceremonies are performed in this garden area located between the Phelps and Heffelfinger fountains. The Perennial Trial Garden is a recent addition to the Lyndale Park, and features perennials that are tested over several seasons for hardiness, disease resistance and other features. Maintained by the volunteers from the Men's Garden Club of Minneapolis, this garden is a meandering border that begins near King's Highway and follows the wood line down towards the Peace Garden. This perennial trial garden is planted in the area once occupied by an elaborate perennial border that was first installed in 1925 and later abandoned in the 1960s.
Primarily a sanctuary for migratory songbirds in the spring, the warblers are the primary attraction. The Minnesota Audubon Society offers free tours every Tuesday at 9a during April and May. It is also a quiet and peaceful nature walk in the midst of the city. The main entrance to the sanctuary is in the Lyndale Park Gardens parking lot, and trails through that back of the Peace Garden. Named for Thomas Sadler Roberts, M.D., D.Sc., Founding Member of the Minneapolis Young Naturalists Society, and the American Ornithologists' Union, and member of the Minnesota Ornithologists' Union.
Lyndale Farmstead Park
Another park with a similar name, Lyndale Farmstead Park, is a separate park located between West 38th Street and West 40th Street on Bryant Avenue South. Lyndale Farmstead Park contains a recreation center and the Theodore Wirth house, Theodore Wirth House-Administration Building. The house is on the National Register of Historic Places.