Horticulture

As one of Lower Manhattan’s most heavily used public spaces, the park’s horticulture requires constant attention and long-term care. The Washington Square Park Conservancy funds NYC Parks gardeners stationed in the park, along with the equipment and supplies they rely on to maintain this complex urban ecosystem. With one full-time Horticulture Coordinator and one seasonal gardener, supported by seasonal horticulture contractors, the team works year-round to restore lawns and garden beds impacted by heavy foot traffic, protect vulnerable plantings, and cultivate a more resilient landscape through climate-adapted and native plants. Their work helps ensure that Washington Square Park remains lush, vibrant, and ecologically thriving for people, pollinators, and wildlife alike.

Winter

Structure, texture, and subtle beauty

In winter, the park reveals a quieter kind of beauty. Evergreens take center stage, bringing texture and color to the landscape when much of the garden has gone dormant. Grasses like hakonechloa and the seedheads and stems of plants such as amsonia provide subtle winter interest, bringing light and movement through the coldest months. Even in the depths of the season, early blooms begin to emerge: hellebores, snowdrops, and mahonia offer signs of life, while hollies brighten the park with persistent crimsonberries.

What the horticulture team is focused on

The gardens may be dormant, but winter is still an essential season for park stewardship. The horticulture team focuses on structural pruning of trees and shrubs to ensure public safety and improve plant health and long-term form. It is also a time for planning the year ahead: evaluating plant performance, designing seasonal displays, and preparing for spring installations. Repair and maintenance of tools and equipment is also a crucial winter project, ensuring the team is ready to care for the park when the growing season begins again.

Spring

A burst of bloom across the park

Spring is one of Washington Square Park’s most anticipated seasons, when the park erupts with color after winter’s quiet. Since 2016, more than 250,000 bulbs have been planted throughout the park, creating waves of crocus, daffodils, camassia, irises and more across the landscape. Flowering trees and shrubs soon follow: three different varieties of Japanese cherry trees, star and saucer magnolias, crabapples, tree lilac, Korean spice viburnum, and tulip trees bringing blossoms, fragrance, and canopy color to the gardens. As the season progresses, late-spring bloomers like our two catalpa trees begin to emerge, extending the display into early summer.

What the horticulture team is focused on

For the horticulture team, spring is a season of intense activity and transition. Existing perennials are divided to encourage vigor and expand plantings, new perennials are planted, and open lawns receive focused care through seeding and aeration after winter wear. Irrigation systems are turned back on, and the park’s select closed lawns are reopened for use around Memorial Day weekend. Spring is also when seasonal staff and volunteers are trained, building and expanding the knowledge and experience needed to support the park through its busiest months.

Summer

Peak bloom and pollinator season

In summer, Washington Square Park’s gardens are at their fullest – lush, colorful, and buzzing with life. Some of the most dramatic flowers are in bloom: climbing hydrangeas snaking up the park house, softball-sized purple alliums, and waves of fragrant roses. Crepe myrtles and Kerria japonica add bright shocks of crimson and gold, while plants like our sole black mulberry tree and the various liriope cultivars begin to fruit, offering food for wildlife and deepening the richness of the summer landscape. This is the season when the park feels most abundant, with nectar-rich pollinator favorites like echinacea, milkweed, Joe Pye weed, and swamp sunflowers attracting dozens of species of bees, butterflies, and other essential pollinators.

What the horticulture team is focused on

Summer care is about constant, hands-on maintenance. The horticulture team focuses on weeding, deadheading spent blooms, and mowing lawns to keep the park healthy and welcoming during its heaviest season of use. Shrubs such as oakleaf hydrangeas are pruned at the right time to encourage future flowering, while fences and garden edges are replaced and repaired to protect planted areas. With so many visitors enjoying the park, gardeners also closely monitor for trampling and other damage, responding quickly to protect vulnerable lawns and garden beds in this extensively used urban landscape.

Year-Round Stewardship

Caring for Washington Square Park is a year-round effort. Every season brings its own unique wonder, and its own challenges. In a park that welcomes millions of visitors, lawns compact, garden beds erode, and plants face constant pressure from heavy use. At the same time, the demands of a changing climate require new approaches to planting and maintenance, from selecting more resilient species to adapting care practices across the calendar year.

That is why the Washington Square Park Conservancy’s support is so essential. The Conservancy funds the NYC Parks gardeners dedicated to the park, as well as the tools, materials, and horticultural resources they need to do this work. Through daily maintenance, seasonal restoration, thoughtful closures, and long-term planning, the horticulture team helps sustain a healthier, more resilient landscape that can continue to serve as both a beloved public space and a vital urban ecosystem.

Pollinators, Native Plants, and Urban Habitat

Washington Square Park is not only a destination for people, it is also an important habitat in the middle of a dense urban environment. Birds, bees, butterflies, moths, and other pollinators rely on the park’s trees, flowers, seedheads, fruit, even leaf litter and dead wood, for food, shelter, nesting, and seasonal refuge. In a city where green space is limited, even small pockets of habitat make a meaningful difference.

To support urban biodiversity, the park’s horticulture team increasingly incorporates native and climate-adapted plants throughout the park. These species are often better suited to local conditions, more resilient under stress, and more beneficial to pollinators and wildlife. Combined with practices like seasonal lawn closures, mulching, and careful timing of pruning and cleanup, this approach helps the park function as both a vivid landscape and a living ecological resource