Explore fresh, forward-thinking approaches to sustainable gardening—from building healthy soil and capturing rainwater to designing resilient spaces that nurture both people and pollinators. This year’s sessions offer inspiration and practical solutions for adapting beautifully to our changing environment.
The Seminars by Category are listed in chronological order. Please check the Seminar Schedule for a full list of all our seminars. No ticket refunds for Speaker cancellation.
All seminars at the Northwest Flower & Garden Festival are FREE with your ticket!
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Pruning Shrubs, Simplified! Christina Pfeiffer - Horticulture Educator, Author, ISA Certified Arborist
Pruning shrubs for natural beauty is simpler than it may sound. In this hands-on session, attendees will see how and when to use two essential pruning cuts that maintain shape, encourage healthy growth, and save time in the long run. The demo includes examples of popular deciduous and broadleaf evergreen shrubs, with clear guidance on how to prune according to each plant’s growth habit. Participants will leave with practical knowledge and renewed confidence to bring out the best in their garden’s shrubs... naturally and beautifully!
Wednesday, February 18, 2026 / 11:45am / DIY Stage
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Assisted Migration in the Garden: Adapting to Shifting Plant Hardiness Zones Jessi Bloom - Award-winning Author, Ecological Designer, Certified Arborist
As climate zones shift, so do the rules of what thrives where. Explore the science and strategy behind assisted plant migration... the practice of intentionally planting species outside their historical ranges to adapt to a changing climate. Attendees will learn about climate modeling, plant selection, and how to weigh ecological risks while balancing biodiversity with bold experimentation. Whether you’re a plant geek, habitat builder, or climate-resilient gardener, this session offers the insight and tools to rethink your plant palette and design gardens that honor place while embracing the future.
Wednesday, February 18, 2026 / 12:00pm / Hood Room
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Great Plant Picks - Water Wise Wonders: Drought-tolerant Plants for PNW Gardens Richie Steffen - Executive Director, Elisabeth C. Miller Botanical Garden
Do you hate paying those high water bills to keep your plants alive all summer? Great Plant Picks, a non-profit education program of the Elisabeth C. Miller Botanical Garden, has a great selection of drought-tolerant trees, shrubs and perennials that will thrive with minimal water. Learn the best choices for dry shade or blazing sun to create a beautiful garden that will look good in any season.
Wednesday, February 18, 2026 / 1:00pm / Main Stage
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Native Plants in Flower Gardens: Beauty for Bouquets, Strength for Ecosystems Briana Bosch - Author, Founder of Blossom and Branch Farm
Native plants offer gardeners the best of both worlds: stunning blooms for arrangements and vital ecological benefits for pollinators, birds, and soil health. In this session, attendees will learn how to weave native species into both cutting and ornamental gardens. The discussion highlights why natives matter, which varieties offer great vase life, and how to design plantings that blend them with traditional cut flowers. With insights from The Regenerative Gardener’s Handbook (Storey Publishing, 2026), attendees will gain practical ideas for creating sustainable, pollinator-friendly gardens that thrive in every season.
Wednesday, February 18, 2026 / 1:30pm / Adams Room
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Virtual Garden Tours: Edible and Ecological Landscapes of the PNW Mary Marshall & Andrew Tuttle - Educators, Designers, Edge Perma & Redtail Edge Design Co-founders
Experience some of the nation’s most inspiring edible landscapes and regenerative farms through guided, immersive virtual tours. This session offers a behind-the-scenes look at leading gardens and farms across the U.S., showcasing how each integrates holistic practices in food production, community engagement, and environmental stewardship. Through video walkthroughs, aerial perspectives, and expert insights, you’ll gain fresh ideas and inspiration for your own gardens, education programs, and design projects.
Wednesday, February 18, 2026 / 3:00pm / Adams Room
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20 Years of Rooftop Gardening at Portland's Noble Rot Marc Boucher-Colbert - Garden Specialist, Educator, Urban Agriculture Innovator
High above Portland’s east side, rooftop gardener Marc Boucher-Colbert has spent two decades growing gourmet produce in just inches of soil. In this fascinating seminar, he shares the fundamentals of rooftop gardening—how to design productive systems in limited space and experiment successfully with shallow growing depths. Attendees will also learn how Marc’s collaboration with the chef team at Noble Rot demonstrates a forward-thinking model for sustainable, hyper-local food production. Practical, inspiring, and deliciously creative, this session reimagines what’s possible when innovation meets the urban skyline.
Thursday, February 19, 2026 / 10:30am / Adams Room
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Smart Stormwater: Practical Solutions for a Resilient Future Brandy Hall - Author and Founder, Shades of Green Permaculture
Imagine a landscape that slows, sinks, and stores every drop of rain—while restoring soil health and supporting native ecosystems. In this session, attendees will learn permaculture-based strategies for designing landscapes that treat water as a resource, not a runoff problem. The discussion covers how to restore the water cycle through smart design, use contouring techniques like swales and rain gardens, select diverse, site-appropriate plant communities, and build long-term soil fertility through water-wise systems. Attendees will leave inspired and equipped to transform their own spaces into thriving, climate-resilient landscapes.
Thursday, February 19, 2026 / 12:00pm / Adams Room
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The Resilient Gardener: Graceful Strategies for a Lifetime of Growing Jessi Bloom - Award-winning Author, Ecological Designer, Certified Arborist
As we age, our relationship with the garden evolves. This empowering seminar explores how to adapt gardening practices with accessible tools, ergonomic techniques, and thoughtful design that support both personal well-being and ecological health. Learn how to nurture yourself while nurturing the land—cultivating resilience, creativity, and connection through every season of life. With practical ideas and gentle inspiration, this session celebrates the enduring bond between gardener and garden, proving that the joy of growing never fades, only deepens.
Thursday, February 19, 2026 / 1:30pm / DIY Stage
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Growing a Garden with Soul, Soil & Science Anne Bikle - Soil Health Expert, Author, and Science Writer
The bond between gardener and garden is both real and essential, deepening through discovery and hands-on learning. In this session, attendees will learn why the symbiotic relationships plants form with soil organisms are foundational to more resilient, thriving gardens. Through using mulches to feed the soil microbes that support plant health and reducing soil disturbance, a gardener can join these ancient botanical networks and reap the benefits of wonder, beauty, and nourishment that begin with the soil in their garden.
Thursday, February 19, 2026 / 4:00pm / Rainier Room
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Gardening in Alaska’s Zone 4: Cultivating Success on the Kenai Peninsula Larry Opperman - Radio Host, Master Gardener, Educator
Gardening in Alaska comes with its own set of challenges... and rewards. This informative seminar focuses on growing successfully in USDA Zone 4 on the Kenai Peninsula, where short seasons, cool summers, and shifting daylight demand creativity and resilience. Attendees will learn about soil preparation for cold climates, extending the season with high tunnels and cold frames, and selecting hardy, early-maturing varieties. The session also explores microclimates, composting in cold regions, and integrating native and edible perennials. Whether new to the region or an experienced grower, participants will gain practical tools to help gardens thrive from spring to frost no matter where you grow.
Thursday, February 19, 2026 / 4:00pm / Hood Room
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Hugelkultur Gardening in the PNW Sarah Wagstaff - Flower Farmer, Educator, Owner of SUOT Farm
Discover the art and science of Hugelkultur... a centuries-old gardening technique that turns woody debris and organic matter into thriving, self-sustaining garden beds. In this practical seminar, local grower Sarah Wagstaff explains how Hugelkultur works and why it’s an ideal solution for building soil health, conserving water, and creating long-term fertility. Attendees will learn step-by-step how to design and build their own beds, choose the right materials, and select plants that flourish in this living system. A sustainable practice with timeless roots, Hugelkultur transforms waste into abundance.
Thursday, February 19, 2026 / 5:30pm / Rainier Room
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If A Tree Falls, Leave It! Evan Meyer - President and CEO, Bloedel Reserve
Gardeners often strive for perfection by pulling every weed, pruning every branch, and covering every bare patch. But nature sometimes has other ideas. This thoughtful seminar explores how embracing nature’s unpredictability can bring unexpected rewards, from richer habitats to more dynamic garden features. Learn how working with nature, rather than against it, opens space for creativity, resilience, and connection. By co-designing with natural processes, gardeners can cultivate landscapes that thrive in partnership with the land—planting not only beauty, but also seeds of hope for a healthier future.
Friday, February 20, 2026 / 10:00am / Rainier Room
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Stressed Out: Recognizing, Treating, and Avoiding Drought Stress in Landscapes and Gardens Linda Chalker-Scott - Ph.D. Horticulturist, Researcher, Author
Our gardens and landscapes are experiencing increasingly hot, dry summers due to a changing climate. Drought stress in trees and shrubs can result from environmental factors such as limited soil moisture, salinity, and poor aeration, as well as management issues like inadequate soil preparation, improper planting, and lack of aftercare. This seminar examines the physiological and morphological responses plants exhibit under chronic drought stress, helping gardeners recognize early symptoms, identify underlying causes, and implement corrective measures. Understanding and preventing drought stress reduces susceptibility to pests and disease, protecting the long-term health of our landscapes.
Friday, February 20, 2026 / 10:45am / Hood Room
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Succession in the Garden John McCallen - Ecologist, Garden Designer
Change isn’t something to fear... it’s what makes ecological gardens truly come to life. In this inspiring seminar, attendees will see how gardens evolve with time and how intentional design can work in harmony with nature’s shifts. Through stories and images from three of his own creations—spanning Zones 8, 9, and 10—the speaker reveals how soil-building, plant succession, and shifting climates influence each space. Attendees will leave with practical insight into designing gardens that age gracefully, adapt to warmer, drier conditions, and celebrate the beauty of continual renewal.
Friday, February 20, 2026 / 12:00pm / Adams Room
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Garden Alchemy: Transforming Your Garden with Nature’s Wisdom Stephanie Rose - Award-winning Author, Master Gardener, Permaculture Designer
Forget everything you thought you knew about gardening! In this imaginative and hands-on seminar, Stephanie Rose - author of Garden Alchemy (Cool Springs Press, 2020) - invites attendees to rediscover the garden as a living laboratory. Learn to test and build soil, craft custom compost and fertilizers, propagate plants creatively, and support beneficial insects while observing how nature responds. Blending science, intuition, and experimentation, this session encourages gardeners to co-create with nature, transforming ordinary spaces into thriving ecosystems that evolve with care, curiosity, and a touch of alchemy.
Friday, February 20, 2026 / 2:30pm / Rainier Room
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Are “Alien” Plants “Bad”? Doug Tallamy - T. A. Baker Professor of Agriculture, University of Delaware
Some argue that non-native plants benefiting certain pollinators or birds should be embraced, but what is the full ecological cost? Tallamy presents research comparing the impact of introduced species versus native ones, showing that the latter support far richer and more stable food webs, making a compelling case for prioritizing native plants. Some argue that non-native plants benefiting certain pollinators or birds should be embraced, but what is the full ecological cost? Tallamy presents research comparing the impact of introduced species versus native ones, showing that the latter support far richer and more stable food webs, making a compelling case for prioritizing native plants. Saturday, February 21, 2026 / 10:00am / Rainier Room
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The Continuous Vegetable Garden Charlie Nardozzi - Author, Emmy Winning TV Personality
Many gardeners love growing vegetables but struggle with the “boom and bust” cycle of harvests, the cost of new seeds and transplants, and the constant reset each spring. This session introduces the idea of a Continuous Vegetable Garden... one designed for steady production with less effort. Attendees will learn how to include perennial vegetables and herbs, encourage self-sowing crops, and save their own seeds. You'll also learn about compact fruit options, ecological gardening methods, and design strategies for a harvest that lasts from early spring through fall. Charlie's talk is sponsored by Velcro.com.
Saturday, February 21, 2026 / 11:30am / Rainier Room
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The Wild & Free Garden: Zero Cost, Infinite Value Stephanie Rose - Award-winning Author, Master Gardener, Permaculture Designer
Discover how to grow a vibrant, abundant garden without spending a dime. This refreshing session celebrates creativity, resourcefulness, and the joy of working with nature... not against it. Through real-world examples and inspiring garden tours, find out how to make the most of what you already have, tap into the sharing economy, and apply simple permaculture ideas to reduce costs and waste. Filled with practical tips and heartfelt encouragement, this session proves that the most rewarding gardens aren’t the most expensive at all... they’re the ones grown with imagination, intention, and a deep connection to the earth.
Saturday, February 21, 2026 / 1:00pm / Rainier Room
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Creative Alternatives to the Classic Lawn Karen Chapman - Landscape Designer, Author, Owner of Le Jardinet
Many homeowners want to reduce the chemicals, water, and time spent on their lawns—but it can be hard to know what to do instead. In this inspiring seminar, landscape designer Karen Chapman shares a series of striking before-and-after transformations that reveal the possibilities of reducing or eliminating turf. Attendees will see design ideas for sun and shade, in styles ranging from contemporary to traditional, along with practical maintenance considerations. Whether your space is large or small, you’ll gain fresh inspiration and design strategies to reimagine your landscape with beauty and purpose.
Saturday, February 21, 2026 / 1:15pm / Hood Room
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Prune Like the Pros Charlie Nardozzi - Author, Emmy Winning TV Personality
Pruning doesn’t have to be intimidating... with the right tools and techniques, gardeners can prune with confidence. In this live demonstration, attendees will learn the essentials of pruning trees, shrubs, and vines for health, structure, and beauty. The session covers selecting and using proper tools, making clean cuts, and understanding when and how to prune for the best results. Participants will also explore how to shape young trees, rejuvenate overgrown shrubs, and encourage abundant blooms and fruit through skillful, timely pruning. Charlie's talk is sponsored by Velcro.com.
Saturday, February 21, 2026 / 3:15pm / DIY stage
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The Herbal Landscape Sue Goetz - Award-winning Garden Designer, Author, Speaker
Herbs aren’t just for the kitchen... they’re some of the hardest-working plants in the landscape. In this informative seminar, Sue Goetz highlights herbs that thrive with low maintenance, conserve water, resist deer, and support pollinators with nectar and shelter. Attendees will discover herbs that shine as hedges, groundcovers, and container plants, along with design tips for blending them beautifully with ornamentals. From meadow makers to pollinator magnets, this session reveals how versatile herbs can add fragrance, texture, and purpose to any garden... proving they’re as functional as they are beautiful.
Saturday, February 21, 2026 / 4:00pm / Rainier Room
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Next Steps for Nature: Questions (and Answers) for How to Save Nature in Our Yards Doug Tallamy, T. A. Baker Professor of Agriculture, University of Delaware
Even after reading books and attending talks, many still have pressing questions about ecological landscaping. In this talk, Tallamy addresses common concerns on biodiversity, invasive species, native plants, and conservation strategies, providing practical guidance and motivation to restore nature in everyday spaces. Even after reading books and attending talks, many still have pressing questions about ecological landscaping. In this talk, Tallamy addresses common concerns on biodiversity, invasive species, native plants, and conservation strategies, providing practical guidance and motivation to restore nature in everyday spaces. Sunday, February 22, 2026 / 10:00am / Rainier Room
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Regenerative Flower Farming: How Beauty Can Heal the Earth Jennifer Gulizia - Flower Farmer, Educator, Podcast Host
What if your flower garden could do more than just look beautiful? What if it could help restore soil, support pollinators, and play a role in healing the planet? In this inspiring seminar, attendees will follow Jennifer Gulizia’s journey of transforming 20 acres of depleted land into a thriving regenerative flower farm. The session explores what regenerative gardening really means, why soil health matters even in small spaces, and how to begin with simple, sustainable steps like composting, cover cropping, and planting with purpose. Every garden, no matter its size, can make a lasting difference.
Sunday, February 22, 2026 / 10:30am / Adams Room
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Edible Landscaping in the PNW Hailey Lampe - Garden Coach, Founder of Cruising Climate
Imagine stepping outside your door into a garden that feeds both you and the local ecosystem. Learn how to design and grow a Pacific Northwest–style food forest using native plants that are as beautiful as they are productive. Learn how to select the right mix of trees, shrubs, and perennials, and determine how much food you want to grow while designing a space that fits your lifestyle. Attendees will leave inspired to create a thriving, edible landscape at home.
Sunday, February 22, 2026 / 12:00pm / Hood Room
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More Than Canning: Creative and Easy Ways to Preserve the Harvest Meagan Lloyd - Gardening Creator, Sustainable Living Advocate
Your garden has given you abundance... now what? This practical, flavor-filled seminar explores both modern and traditional ways to preserve the harvest long after the season ends. Go beyond water bath and pressure canning to discover fermentation, dehydrating, freezing, infusing, and shelf-stable meal-making. Learn which methods best protect flavor and nutrients, how to store homegrown produce safely, and clever tricks for using every last bit (yes, even carrot tops). Whether you’re overflowing with tomatoes or buried in basil, this session will help you save - and savor - the season all year long.
Sunday, February 22, 2026 / 12:00pm / Adams Room
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Organic Farmer Techniques for Thriving Backyard Gardens Scott Pessarra - Farmer, Educator, Founder of Mindful Farmer
Discover how regenerative farming principles can turn any backyard into a thriving, low-input food system. In this practical and inspiring seminar, organic grower and educator Sean Pessarra, founder of Mindful Farmer, shares techniques adapted from professional agriculture for the home garden. Attendees will learn about no-till bed preparation, targeted organic fertilization, cover cropping, and natural pest and weed management, along with ways to attract beneficial wildlife through native habitat design. Grounded in sustainability and simplicity, this session offers clear guidance to help gardeners grow more while giving back to the land.
Sunday, February 22, 2026 / 1:15pm / Hood Room
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Soil Stories: Regeneration & Reconnecting Jennifer Jewel - Host of NPR's Cultivating Place, Author
Hosted by Jennifer Jewell as part of Cultivating Place LIVE!, this panel digs deep into the living foundation of every garden: soil. Panelists explore how regenerative practices are transforming how we grow, care, and connect with the earth. Expect an inspiring, science-meets-heart conversation about healing landscapes, rebuilding biodiversity, and rediscovering our shared relationship with the ground beneath us.
Sunday, February 22, 2026 / 1:30pm / Adams Room
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Demystifying Soil Testing: Turning Numbers Into Knowledge Matt Williams - Plant & Soil Scientist, Educator, Researcher
Ever looked at a soil test report and thought, “Now what?” This session takes the guesswork out of soil testing, from proper sampling techniques to interpreting results with confidence. Learn how to read and compare reports from different labs, identify key indicators like pH and nutrient levels, and make informed choices about fertilizers and amendments. With practical guidance on timing, tools, and next steps, this clear, approachable session will help you transform your soil data into a thriving, sustainable garden. Sunday, February 22, 2026 / 2:45pm / Hood Room
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Reclaiming Kinship with our Plant Relatives LoriAnn Bird - Métis Herbalist, Educator, Author
Rediscover the deep, interconnected relationship between people, plants, and the living world. This reflective session explores how we can regenerate and care for Mother Earth, who offers abundance through her gifts of life. Attendees will consider who to invite into their gardens to rebuild a reciprocal relationship with native plants... their nourishing wild edibles, their healing medicines, and their quiet beauty. Rooted in gratitude and respect, this session reminds us that every act of tending the earth is also an act of receiving, reconnecting, and belonging.
Sunday, February 22, 2026 / 3:00pm / Adams Room
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