For nearly four decades, Irwin Landscaping has been creating thoughtful, enduring outdoor spaces for homeowners throughout Northern Delaware and Southeastern Pennsylvania. But a landscape is personal, and choosing who brings yours to life should be, too. Take a few minutes to watch our videos, meet the people behind Irwin, and see how we approach design, planting, and the relationships that have shaped our work for generations.
The Irwin Story
Nearly four decades of thoughtful landscape design.
Irwin Landscaping has spent nearly 40 years creating distinctive residential landscapes throughout Delaware, Pennsylvania and Maryland. Rooted in landscape architecture, our approach combines thoughtful design, experience and a genuine appreciation for how homeowners want to live outdoors.
Our Design Process
Designed around the way you live.
Every project begins by getting to know the client and the property. We walk the site, talk about how you want to use the space and develop a plan around your lifestyle, priorities and budget. From patios and outdoor entertaining areas to intimate gardens and low-maintenance landscapes, the design grows from what makes sense for you.
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Our Planting Philosophy
Native when it makes sense. Beautiful always.
We love native plants for their resilience, seasonal beauty and value to pollinators and local wildlife. But we do not believe every landscape has to be strictly native. Many of our gardens blend native and carefully selected non-native plants to create the right balance of color, texture, habitat and year-round interest for each property.
Meet Peter Irwin & Matt Frigm
For Irwin Landscaping, great landscape design starts with understanding the property, the people who live there and how the two can work naturally together. Peter Irwin and Matt Frigm bring experience, creativity and a genuine appreciation for the landscape to every project. Their approach combines thoughtful planning with an eye for the details that make an outdoor space feel personal, established and completely at home in its surroundings.






