Alexa Lee
Sales Manager – Landscaping GEM
Alexa has been at GRO since 2016 and loves the creative process of taking an existing home and giving it new life. In her free time, Alexa enjoys spending time at the motocross track with her family and going on walks with her dog, Gunner.
Her favorite plant is the Butterfly Variegated Japanese Maple (Acer palmatum ‘Butterfly’).
Lucas Denning
Sales Manager – Builder Services GEM
Lucas has been at GRO since 2017 and works with local developers to landscape new homes before they hit the market. On weekends you can find Lucas cooking steaks and watching the Chiefs game.
His favorite plant is the Hinoki Cypress (Chamaecyparis obtusa).
Colby Seibold
Division Manager (Construction & Remodeling)
Colby has been at GRO since 2019 and has a passion for building with high attention to detail. On weekends you’ll find Colby kayaking, hiking, and exploring the NW wilderness.
His favorite plant is the American Black Walnut (Juglans nigra).
Craig Dehning
Landscape Management GEM
Craig has been with GRO since 2023 and is passionate about building meaningful relationships with his clients. On weekends you’ll find Craig spending time with his family and squeezing in a round of golf if he can.
His favorite plant is the Coral Bark Maple (Acer palmatum ‘Sango Kaku’).
Johnny Burrows
Landscape Management GEM
Johnny has been with GRO since 2023 and has three decades of experience in Landscaping. On weekends you’ll find Johnny spending time with family, golfing, and playing softball.
His favorite plant is the Gold Variegated Euonymus (Euonymus japonicus ‘Aureo-marginatus’).
Heather Cooper
Landscape Management GEM
Heather joined GRO in 2024 and is passionate about the great outdoors. On weekends you’ll find her spending time with her family and taking care of her cats.
Her favorite plant is the Candy Stripe Peony (Paeonia x lactiflora ‘Candy Stripe’).
Ryan Underlin
Central Oregon GEM
Ryan started with GRO in the spring of 2025 and has a passion for spending time outdoors! On weekends you’ll find him mountain biking, trail running, and enjoying the beauty of nature with loved ones.
His favorite plant is the native Lupine perennial (Lupinus polyphyllus).
Arianna Supplee
Landscape Management GEM
Arianna first worked with GRO as our Nursery Manager from 2021 to 2023 and is back as a GRO Experience Manager! On weekends you’ll find her hiking, wood working, and caring for her specialty plants.
Her favorite plant is the Venus Dogwood (Cornus x ‘KN30-8’ “Venus”).
Lakeside Landing
Treetop Retreat
This project was ran by our Construction & Remodeling division and designed by our partner company, Design NW (link below). The remodel involved the addition of an outdoor kitchen, wrap-around decking, roof extensions, patios, and more!
View Gallery“We are so happy with the results! The team provided excellent customer service, was responsive to our needs, and completed the project on time. Our backyard is beautiful and we now feel it is one of our best investments.“
Marguerite H.