Mt. Cuba Center

Delaware’s Premier Native Plant Botanical Garden

68 Acres of Wildflower Gardens, Research Trials, and Native Plant Excellence in the Hockessin Hills

If Longwood Gardens represents the grand European tradition of horticultural showmanship, Mt. Cuba Center represents something quieter, more deeply rooted, and — for many visitors — more personally transformative. Tucked into the rolling Delaware Piedmont hills above Hockessin, Mt. Cuba is a nonprofit botanical garden dedicated entirely to the native plants of the Appalachian Piedmont region, the science of growing them well, and the urgent case for planting them at home.

The result is 68 acres of some of the most spectacular wildflower gardens in the eastern United States, surrounded by over 1,000 acres of protected natural lands — and a research program that has quietly become one of the most respected native plant evaluation programs in North America.

Mt. Cuba Center is open for general admission April through November only. The gardens are closed from December through March.

2026 Season Hours:

• April 1–June 30: Tuesday–Sunday, 10:00 a.m.–6:00 p.m.
• July 1–November 22: Wednesday–Sunday, 10:00 a.m.–6:00 p.m. (closing at 4:00 p.m. in November)

The gardens are closed on Mondays throughout the season. During the July–November period, the gardens are also closed on Tuesdays.

Admission: Adults $20 | Children ages 6–17: $10 | Children 5 and under: Free | Members: Free. Library Pass Program: Delaware and Pennsylvania library cardholders can check out a Mt. Cuba library pass for free general admission for up to two adults and four children — available at participating libraries beginning April 1 each year. Always verify current hours, admission, and seasonal closures at mtcubacenter.org before visiting.

The Origins of Mt. Cuba Center: A Private Estate Becomes a Public Resource

In 1935, Lammot du Pont Copeland — then a senior executive and future President and Chairman of the DuPont Company — and his wife, Pamela Cunningham Copeland, built a Colonial Revival manor house on a hillside near the village of Mt. Cuba, outside Wilmington. The property was intended as a private country estate, and for decades it functioned as one.

Pamela Copeland’s influence on the estate’s direction proved decisive. Beginning in the 1960s, as awareness of ecological loss and land development pressure grew in the Brandywine Valley, she became increasingly focused on wildflowers, native plants, and the impact of development on natural habitats. In response, landscape architect Seth Kelsey was engaged to develop the woodland wildflower gardens, design the estate’s ponds, and plan the network of walking paths through the natural lands.

In 1983, Dr. Richard Lighty was hired as the estate’s first Director of Horticulture, and the Copelands formally expanded their interest into botanical research — focusing on native plants of the Appalachian Piedmont, the geographical plant community that defines the Delaware and southeastern Pennsylvania landscape. That same year, Lammot du Pont Copeland passed away. Pamela Copeland continued developing the garden for another decade and a half, eventually opening Mt. Cuba to guided tours in the late 1980s.

Pamela Copeland passed away in 2001. Her estate gift established Mt. Cuba Center as a fully independent public nonprofit garden and research institution. The gardens opened for broader general admission in the years that followed, and Mt. Cuba has grown steadily into one of the most respected botanical institutions in the mid-Atlantic.

Trivia: Mt. Cuba Center has helped protect over 15,000 acres of open space in the Mid-Atlantic region through its conservation partnerships — an extraordinary land-preservation legacy that extends far beyond the gardens themselves.

The Gardens: What to Explore

Mt. Cuba’s 68-acre garden encompasses a range of distinct designed spaces, each highlighting different native plant communities and seasonal moments:

Formal Garden and South Terrace Adjacent to the historic manor house, the formal garden provides a structured counterpoint to the naturalistic woodland beyond — demonstrating how native plants can work within traditional garden design.

Lilac Allée: A signature spring feature at the garden’s entrance, the allée frames early-season visits with fragrance and bloom.

Woodland Wildflower Gardens Mt. Cuba’s heart. The woodland paths wind through a shaded canopy where spring wildflowers — trilliums, Virginia bluebells, Quaker ladies, bloodroot, trout lilies, and dozens of other species — create displays that are available only for a brief window each spring before the forest canopy leafs out and shades the forest floor. Mt. Cuba’s collection includes over 40 distinct trillium species alone.

Meadow and Pond Garden Open-sky native meadow plantings and serene pond edges supporting pollinators, birds, and aquatic wildlife. The meadow is a particular draw for visitors interested in supporting monarch butterflies, bees, and hummingbirds.

Rock Wall, West Slope Path, and Woods Path Additional garden zones exploring native plant communities in more challenging growing conditions — demonstrating to home gardeners how to work with slope, rock, and shade rather than against them.

Natural Lands Trails Beyond the curated garden, over three miles of trails traverse the surrounding natural lands — mature forest, meadow corridors, and creek bottomland that provide context for the garden plantings and a genuine immersion in the regional landscape.

Guided Tours at Mt. Cuba Center

Mt. Cuba offers an unusually rich selection of guided walking experiences, all offered in addition to general admission:

• Welcome Walks — offered daily at 11:00 a.m. and 2:00 p.m. when the gardens are open; one hour, $5 per person additional (free for members). An introductory overview of the garden’s history, plants, and conservation mission
• History of Mt. Cuba Center Tour — a 90-year retrospective of the estate’s transformation from private country home to public garden; one hour, $7 per person additional
• The Beauty of Living Soil Tour — a deep dive into soil ecology and how native plant gardens depend on underground networks; interactive and educational
• Health & Well-Being Tour — exploring forest bathing, mindfulness, and the science behind nature’s restorative effects
• Demystifying Toxic Plants Tour — a natural lands hike covering Mt. Cuba’s land management approach; suitable for more physically active visitors prepared for uneven terrain
• Private Garden Consultations — by appointment, a two-hour individualized tour and consultation for home gardeners; schedule at least two weeks in advance

Wildflower Weekend: Mt. Cuba’s Signature Annual Event

Mt. Cuba’s Wildflower Weekend is one of the most anticipated spring events in the Delaware/Brandywine Valley calendar. The 2026 Wildflower Weekend is scheduled for April 24–26. Free public admission during the weekend, with family-friendly activities and typically a free native plant giveaway for early attendees. Check mtcubacenter.org for 2026 event details as the season approaches.

Mt. Cuba’s Native Plant Research Program

Mt. Cuba Center is internationally recognized for its plant evaluation trials — systematic, multi-year comparisons of native plant species and cultivars to determine which perform best for home gardeners in terms of beauty, vigor, wildlife support, and ecological value. Published trial reports covering genera such as Phlox, Echinacea, Baptisia, Amsonia, Solidago, and many others are available free on the Mt. Cuba website and are used by horticulturalists, nurseries, and gardeners across North America.

If a plant carries the phrase “Mt. Cuba tested” in its description at a native plant nursery, it means something specific — a multi-season evaluation under real garden conditions in the Piedmont region, not a marketing claim.

Mt. Cuba in the Hockessin and Brandywine Valley Context

Mt. Cuba sits at the heart of a cluster of outstanding cultural and natural attractions in the Hockessin area, including the Ashland Nature Center, the Auburn Heights Mansion and Marshall Steam Museum (Yorklyn), the Wilmington and Western Railroad (Greenbank), and the broader du Pont estate garden corridor that includes Winterthur Museum, Garden & Library just a few miles north on Route 52. For visitors building a Brandywine Valley garden itinerary, Mt. Cuba and Chanticleer Garden in Wayne, PA make a natural two-stop pairing on either side of the Delaware/Pennsylvania border.