Meet Our Team


Walters Gardens began as a small, family run 5-acre farm growing perennials for local suppliers. It has since grown to 1,500 acres and over 500,000 square feet of greenhouses. Still family owned, we haven’t lost sight of our (bare) roots or the values that made this company what it is. Our commitment to a high quality product and genetics have led to an expansive collection of plant introductions, lasting relationships with our customers, and a close relationship with Proven Winners® as the exclusive home of Proven Winners® Perennials.

Much of our success can be attributed to the employees who have spent countless years working for Walters Gardens and whose contributions have helped to move our company forward.


Executive Team

From Left: Ryan Hop (COO), John Walters (Chairman of the Board), Christa Steenwyk (VP of Sales & Marketing), Karin Walters (CEO)


Sales Team

Josh Roggenbuck
Regional Product Manager

IL, IN, MI, OH, KY, WV

Laura Robles
Regional Product Manager

CT, DE, NH, MA, MD, ME, NJ, NY, PA, RI, VT

Matt Pielin
Regional Product Manager

AK, AR, CA, CO, HI, ID, KS, MO, MT, NM, NV, OK, OR, TX, UT, WA, WY

Cayla Olson
Regional Product Manager

IA, MN, ND, NE, SD, WI

Laura Wagner
National Account Manager

Angie Clelan
Regional Product Manager

AL, FL, GA, LA, MS, NC, SC, TN, VA


Department Heads

Heather Verdoorn
Customer Care Lead

Sandy Chandler
Controller

Kevin Hau
IT Manager

Justin Dyk
Maintenance Supervisor

Hans Hansen
Director of New Plant Development

Drew Koschmann
Head Grower

Del Walters
Field Operations Manager

Greg Nichols
Crop and Fertility Manager