Greenwise - Milwaukee

Dreaming of Patio Season?
❄️ While winter might have us bundled up indoors, it’s never too early to dream about the warm days ahead and those cozy evenings spent outside. 🌞 Can you imagine a patio that’s perfect for both lounging in the sun and gathering around with friends?
Let Greenwise help you create your ideal outdoor space—the possibilities are endless! 🏡✨Contact us before the spring rush! https://www.iamgreenwise.com/contact-us/

Erik has been a valued member of the Greenwise team since 2014. A native of Evanston, he transitioned into landscaping after college and has steadily advanced through the ranks. Many of our customers will remember Erik as a foreman during their garden maintenance visits, where his hard work, along with his lively and warm demeanor, made a lasting impression.

Now serving as our Assistant Landscape Maintenance Manager, Erik oversees our maintenance program with his signature patience and methodical passion. His role is essential to the smooth operation of our maintenance department, and we truly appreciate his dedication. Outside of work, Erik loves spending time with his three children.

Welcome to Greenwise, Bob Diel!

We’re excited to welcome our newest team member, Bob Diel, who joined us as the Milwaukee Branch Manager & Senior Designer. Bob is originally from Wisconsin, with a brief time spent in Connecticut, and holds a degree from the University of Wisconsin-Madison. With more than 42 years of experience in the industry, Bob has earned the affectionate nickname of “Grandpa” from his colleagues! His passion for plants and the outdoors began at the young age of 10 when he started his first garden.

Bob enjoys working outdoors and collaborating with the crews to bring designs to life. He finds it especially rewarding to see a project evolve from something on paper into someone’s dream backyard.

We’re thrilled to have Bob on board and look forward to the great things we’ll accomplish together!

Gannon is entering his fifth season at Greenwise as a Landscape Designer, mainly covering the near north suburbs and northeast Chicago service area with his expertise and creativity.
"I love being part of the sales team here at Greenwise, where sustainability is at the heart of everything we do—from design to landscape maintenance. Our team is a dynamic mix of young talent and seasoned professionals, bringing together energy and experience to deliver exceptional results. Every day presents new opportunities for problem-solving and creating unique designs, which keeps my work exciting and fulfilling," Gannon shares.
As a key member of the design team, Gannon is passionate about helping clients bring their visions for outdoor spaces to life. His approach prioritizes both functionality and sustainability, ensuring that each design is not only beautiful but also practical and environmentally conscious.
"At home, I tend to a mid-sized, mixed perennial and tropical garden in the western suburbs, along with a small annual container garden at my home in Evanston. Gardening is a passion of mine, and I love all things plants. This enthusiasm shines through in the attention to detail I bring to my work with clients," says Gannon.