Bill Kellam

Cornerstone Landscape Nursery

Creating an outdoor space that looks beautiful, functions well, and complements the property requires more than selecting plants or choosing attractive materials. Effective landscaping starts with understanding the property, the owner's goals, and how different elements will work together over time. As the Owner of Cornerstone Landscape Nursery, Bill Kellam brings a practical, customer-focused approach to landscape design and services throughout Green Bay, Wisconsin, and surrounding areas.

Under his leadership, Cornerstone Landscape Nursery has built its reputation around thoughtful outdoor design, quality installation, and personalized service. The company is locally owned, family-owned, and veteran-owned, and its team brings more than 50 years of combined experience to landscaping projects throughout Northeast and Northern Wisconsin.

Bill's role encompasses more than overseeing individual landscaping projects. He helps guide customers through the process of turning ideas for their yards and outdoor areas into finished spaces. From initial planning and design through installation and ongoing maintenance, Cornerstone Landscape Nursery provides services intended to make landscaping projects easier to manage.

The company's approach reflects an understanding that every property has different characteristics, including its layout, existing features, soil conditions, and seasonal considerations. Bill and his team work to create landscape solutions that reflect each customer's preferences while making practical use of the available space.

Areas of Expertise

Bill Kellam's primary area of expertise is landscape design and services, with a focus on creating outdoor environments that balance visual appeal, usability, and the unique characteristics of each property. At Cornerstone Landscape Nursery, the design process is centered on developing custom landscape plans rather than applying a one-size-fits-all approach. The team considers the customer's vision alongside the property's natural features to create a plan that can be effectively implemented.

A successful landscape begins with thoughtful planning. Bill understands that elements such as plant placement, garden beds, walkways, patios, retaining walls, lighting, and outdoor living features need to work together as part of a cohesive design. Cornerstone Landscape Nursery provides landscape design and installation services that can include custom layouts, plant selection, hardscape integration, drainage and grading solutions, lighting, irrigation, mulch beds, edging, tree and shrub placement, and seasonal color planning.

Bill's expertise also extends to the practical side of landscape installation. Good design needs to account for how a property will be used and how the landscape will perform through changing Wisconsin seasons. Cornerstone Landscape Nursery's services include hardscape installation, patios, walkways, retaining walls, outdoor kitchens, fire features, water features, outdoor lighting, new lawns, and landscape maintenance. This broad range of services allows customers to coordinate multiple aspects of an outdoor project with one landscaping team.

Hardscaping is another important component of Bill's professional focus. Structural features such as retaining walls can help address sloped areas, erosion, drainage, and the creation of usable outdoor spaces. Patios and walkways can provide defined areas for entertaining, movement, and access around a property. Cornerstone Landscape Nursery works with materials including natural stone, brick, flagstone, cobblestone, gravel, and pavers, giving customers options for achieving different styles and functions.

Bill also recognizes that outdoor spaces should be designed around the way people want to use them. Outdoor kitchens, fire pits, patios, and lighting can transform a yard into an area for gathering, relaxing, and entertaining. Cornerstone Landscape Nursery's outdoor kitchen services, for example, are designed around cooking preferences, entertainment needs, and the available outdoor space. Fire features can likewise provide a gathering point and extend the usefulness of outdoor areas beyond daylight hours.

Another aspect of landscape expertise is maintaining the finished environment. A landscape does not stop requiring attention once installation is complete. Cornerstone Landscape Nursery provides maintenance and care services that include plant fertilization, growth trimming, mulch rejuvenation, and other services intended to keep outdoor spaces looking maintained and healthy. This continued care complements the company's design and installation work by helping customers protect the appearance of their investment.

Bill's customer-oriented approach is also reflected in the way Cornerstone Landscape Nursery handles projects. The company offers free estimates and available warranties, while remaining fully licensed and insured. Its website emphasizes a complete service model that takes customers from initial design concepts through installation and seasonal maintenance. This structure can simplify projects for property owners who would otherwise need to coordinate multiple providers for different landscaping needs.

Customer feedback further reflects Bill's involvement in the project experience. Reviews published on the company's website describe Bill as easy to work with and highlight his team's ability to complete projects thoroughly, beautifully, and within customers' budgets. One customer specifically described working with Bill and his team to transform an aging deck area into a new patio, noting the trust established during the initial meeting and the customer's interest in continuing with future phases.

As Owner, Bill Kellam brings together the planning, service, and project-management aspects of landscaping with a focus on helping customers achieve outdoor spaces that suit their properties and lifestyles. His professional role at Cornerstone Landscape Nursery is supported by a team with decades of combined experience and a commitment to serving communities throughout Northeast and Northern Wisconsin.

Build Your Outdoor Vision With Bill Kellam

A well-planned landscape can change the way a property looks, feels, and functions. Whether a project involves a complete landscape design, a new patio or walkway, a retaining wall, an outdoor living feature, or ongoing landscape care, having an experienced team involved from the beginning can make the process more organized and purposeful.



Bill Kellam and the team at Cornerstone Landscape Nursery provide landscape design and installation services tailored to individual properties and customer goals throughout Green Bay and the surrounding areas. Contact Cornerstone Landscape Nursery today to discuss your project, request a free estimate, and take the first step toward creating an outdoor space designed around your vision.