
"Together we Grow"This year's symposium invites us to learn from one another as "Together We Grow". Selected sessions provide a wide variety of gardening and beyond topics. Attend the 2026 DIG symposium and gain knowledge from a variety of experts including Iowa State University staff, educators from across the state, and local Mater Gardeners. DIG will feature keynote speakers, breakout sessions, and a Q & A panel. The home gardener or seasoned professional will walk away informed, inspired, and ready to dig into their gardens this spring season. |
Morning Keynote: TBD |
Keynote information coming soon! |
Backyard Mushroom Cultivation Gina Buelow, ISU Extension Natural Resource Field Specialist Discover the fascinating world of fungi and their vital role in our ecosystems. This session introduces the fundamentals of fungi biology and explores practical, outdoor mushroom cultivation techniques. Whether you're a curious beginner or a seasoned gardener, you'll gain insights into growing mushrooms in your own backyard. Learn how to expand your garden beyond traditional plants and unlock the potential of fungi as a sustainable, rewarding addition to your landscape. |
Rainscaping Cassie Druhl, Rain Campaign You can design your yard to hold and retain stormwater instead of losing it to runoff. By utilizing strategically planned landscaping practices (called Rainscaping) at your home, you can help water naturally soak into the ground, preventing flooding and protecting water quality. Join The Rain Campaign to discuss the variety of Rainscaping practices and to learn about funding assistance programs that are offered by communities in Polk County. | Making a Greenhouse Dream Come True Cynde and Richard Schreiber, Master Gardeners Whether you're dreaming of fresh veggies year-round or a lush tropical escape, this session will guide you through the essentials of greenhouse gardening. Get guidelines, tips, and information for your future hobby greenhouse. From planning and setup to maintenance tips and cost-saving strategies, we’ll explore practical steps to turn your greenhouse vision into reality. Whether you're a beginner or looking to expand your gardening skills, this session will inspire you to grow beyond the seasons. |
Seed Starting Megan Will, Dallas County Master Gardener Coordinator Do you desire tomato and pepper varieties beyond the garden center varieties? Need clarity on transplants versus direct sow options? Wonder what tools you need to be successful? Learn how to grow seeds indoors in this “show and tell” style format with Dallas County ISU Extension Coordinator and Lifetime Master Gardener! | Poison Ivy: Plant Identification, Effective Prevention & Treatment for the Iowa Gardener Dan Boelman, Zanfel Join this session to confidently identify poison ivy and related plants, and learn how to protect yourself while working outdoors. We’ll cover effective prevention strategies, the best personal protective equipment (PPE), and how to safely decontaminate clothing and tools. Discover both over-the-counter and prescription treatment options for allergic skin reactions. As a bonus, we’ll explore the skin-irritating effects of wild parsnip and similar species. Whether you're a gardener, naturalist, or outdoor enthusiast, this session will equip you with the knowledge to stay safe and informed in Iowa’s natural spaces. | The Pace of Life is the Pace of Plants: Embracing Change One Garden at a Time Aaron Harpold, Director of Horticulture, Greater Des Moines Botanical Garden The ancient philosophy that “the only constant in life is change” can be applied to gardening. Climate extremes, garden seasonality, and individual life events help shape the ebb and flow of your backyard landscape. Discover ways to stay adaptable and embrace change. |
Breakout Session #3
Fruit Tree Pruning and Training Patrick O'Malley, ISU Extension Commercial Horticulture Field Specialist Fruit tree pruning is both an art and a science—essential for shaping healthy, productive trees that thrive season after season. In this session, participants will explore the key reasons behind pruning and training fruit trees, from improving structure and airflow to enhancing fruit quality and yield. Whether you're a seasoned gardener or just beginning your journey, this session will equip you with the knowledge to make informed, confident pruning choices. |