Discover Classes. Earn Rewards.

Garden Classes Seattle

Upcoming schedule view

Learn how to cultivate a thriving urban garden in Seattle through classes on sustainable gardening practices, container gardening, and growing vegetables in small spaces.

9 classes have spots left

Soaking It All In: Understanding Soil Water

UW Botanic Gardens

This class is part of a six part series, Getting Down to Earth: Understanding soils for ecosystem resilience and repair. We will dive into exploring how water enters, moves, and gets stored in soils and the relationship between levels of soil moisture and ecosystem function. Topics will include how topography influences water movement, soil physical and chemical properties control soil water storage, and field methods for assessing soil water holding...

(13) All levels 18 and older
No upcoming schedules

Soil Conditions and Management Considerations

UW Botanic Gardens

This class is part of a six part series, Getting Down to Earth: Understanding soils for ecosystem resilience and repair. Building up from the previous classes, we will review soil disturbance and resulting stewardship challenges commonly encountered at restoration sites such as former agricultural land, urban fill, construction sites, brownfields, and degraded natural areas.  We will review how to assess for common soil disturbances as well...

(13) All levels 18 and older
No upcoming schedules

Beautiful Solutions to Gardening on Slopes

UW Botanic Gardens

This class will cover all you need to know about replacing hard-to-manage slopes with easy-care plantings. (This class is not intended for very steep slopes that require structural engineering.) Many homeowners in the Puget Sound region are faced with the challenge of gardening on a slope that may currently be covered with a dangerous-to-mow lawn, difficult-to-access garden beds, or multiple grades. This class will cover all you need to know about...

(13) All levels 18 and older
No upcoming schedules
Discover Classes. Earn Rewards.

Garden Classes Gift Card

Thousands of classes & experiences. No expiration. Gift an experience this holiday season and make it a memorable one. Lock in a price with the Inflation Buster Gift Card Price Adjuster™

Buy a Gift Card

Soil Management Plan Components

UW Botanic Gardens

This class is part of a six part series, Getting Down to Earth: Understanding soils for ecosystem resilience and repair. In this final class of the series students will share their soil management plans developed over the previous 5 classes and discuss them with their fellow students and instructors. Emphasis will be placed on best practices for changing climate and drought resiliency.

(13) All levels 18 and older
No upcoming schedules

Creating a Child-Friendly Garden

UW Botanic Gardens @ Virtual Classroom

In his book, Last Child in the Woods, Richard Louv writes that “stress reduction, greater physical health, a deeper sense of spirit, more creativity, a sense of play…are the rewards that await a family when it invites more nature into their children’s’ lives.” If you are intrigued by the idea of making inviting and nurturing places for children within your own garden, this class will inspire and inform you! You‘ll learn ways to create...

(13) All levels 18 and older
No upcoming schedules

What's Wrong with My Houseplant?

UW Botanic Gardens

Learn the normal life cycle of plants and how to troubleshoot leaf loss, pathogens, pests, watering and lighting issues. Ever wonder why your plant's leaves turn brown or yellow? In this class instructor Tassy de Give, co-author of Rooted in Design and Plant Director of Glasswing Greenhouse and Geometry Gardens, will discuss the normal life cycle of plants: what is acceptable leaf loss, how to identify and treat plant pathogens, common houseplant...

(13) All levels 18 and older
No upcoming schedules

Raising Seedlings for the Backyard Gardener

UW Botanic Gardens @ Virtual Classroom

Learn how to start seeds, upcycle seedling containers, harden off your seedlings and eventually plant them out. Growing your own food from seed is the truest form of sovereignty! Raising seedlings indoors saves money, extends your growing season & optimizes space in your garden beds. Learn how to create the perfect seedling, upcycle seedling containers, understand planting depths for different seeds, how to water them appropriately, how to...

(13) All levels 18 and older
No upcoming schedules

Strange and Unusual Houseplants

UW Botanic Gardens

Learn about the amazing life habits of unusual houseplants and how some have adapted to become epiphytic, camouflaged, or even predatory. Learn about the amazing life habits of unusual houseplants and how some have adapted to become epiphytic, camouflaged, or even predatory. Instructor Tassy de Give, co-author of Rooted in Design and Plant Director of Glasswing Greenhouse and Geometry Gardens, will discuss and show examples of some of the most...

(13) All levels 18 and older
No upcoming schedules

The Permanent Garden: Planting Perennials

UW Botanic Gardens

Learn the yummiest, most beneficial and prolific perennials suited to our PNW climate and rejoice in the diversity of food potential from plants that require the least maintenance. Want more harvesting abundance with less work? Plant perennials! Perennials have long life cycles and continue to give you food for several seasons and even years. Learn the yummiest, most beneficial and most prolific perennials suited to our PNW climate and rejoice...

(13) All levels 18 and older
No upcoming schedules

Tree Pruning I

UW Botanic Gardens

This is a two hour slideshow on tree pruning (not including fruit or nut trees). How to prune a tree limb will be covered, including branch collar identification and the basics of compartmentalization. Also discussed--early training of trees, included bark, double leaders, ANSI tree pruning standards, crown cleaning, crown raising, utility line clearance pruning, mature tree pruning. Mal-pruning will be shown and defined (tree topping, lion's tailing,...

(13) Beginner 18 and older
No upcoming schedules

Tree Pruning II

UW Botanic Gardens

Beyond basic tree pruning is a world of related tree information which is not generally known to the public. This class presents the basics of Hazard Tree Evaluation (same as Risk Assessment), construction damage to trees, and rehabilitative pruning for previously mal-pruned trees. This lecture series is designed for those who work in landscape maintenance.  Classes last two hours and are held on Tuesdays. Each lecture  provides information...

(13) Beginner 18 and older
No upcoming schedules

Pruning Art or Pruning Atrocity

UW Botanic Gardens @ Virtual Classroom

This two hour slideshow covers the three main forms of mal-pruning: tree topping, inappropriate shearing of trees and shrubs, and over-thinning. Then we compare and contrast mal-pruning with bona-fide examples of pruning art: pollarding, cloud pruning, topiary, pleaching, and coppicing. The class ends on a humorous note as slides are shown of "The Good, the Bad, and the Bizarre". This lecture series is designed for those who work in landscape maintenance....

(13) All levels 18 and older
No upcoming schedules

Conifer Pruning

UW Botanic Gardens

This is a two hour slideshow on conifer pruning. Conifers play by different rules than their flowering friends. This class will cover timing and where to make cuts that will help conifers stay vibrant. Taught by Bess Bronstein This lecture series is designed for those who work in landscape maintenance. Classes last two hours and each lecture provides information on tools and techniques for quality pruning with better long-term results and customer...

(13) All levels 18 and older
No upcoming schedules

Plant CSI: What's Wrong with my Apple Tree?

UW Botanic Gardens @ Virtual Classroom

There is nothing better than taking the first juicy bite of a delicious apple picked right off of the tree. But then you notice the holes and dark areas on the fruit, and spots on the leaves, and the bark seems to be peeling off. What’s happening? This course will cover common insect pests and diseases of apple trees, including apple scab, apple anthracnose, powdery mildew, nectria canker, codling moth, apple maggot, aphids, tent caterpillar and...

(13) All levels 18 and older
No upcoming schedules

Native Plants 101: Identification and Gardening

UW Botanic Gardens

Learn to identify some of Western Washington’s common native plants as well as pick up a few tips on plant identification in general! We’ll cover several different species of native plants as well as their growth preferences and how best to incorporate them into your garden or yard at home. This online class will be delivered using Zoom and will be recorded. The recording will be available for two weeks to those who registered to attend.

(13) All levels 18 and older
No upcoming schedules

Plant CSI: What's Wrong with my Conifer?

UW Botanic Gardens @ Virtual Classroom

This course will help you identify common conifer diseases and insect pests including rusts, twig and needle blights, needle casts, adelgids, and moths. Why is your juniper turning brown? Should that pine have orange needles? And why does my hemlock look like it has been covered in lint? There are a number of common insect pests, diseases and abiotic problems that impact the health of both native and landscape conifers in our region. This course...

(13) All levels 18 and older
No upcoming schedules

Rehabilitative Pruning

UW Botanic Gardens

This slideshow describes the three most common forms of mal-pruning (tree topping, over-thinning of trees and shrubs, and inappropriate shearing) and how to fix trees and shrubs which have been mal-pruned. This is an advanced course and those attending should already be familiar with principles of selective pruning. Included is discussion of water-sprouts, suckers, radical renovation techniques, and crown restoration. This lecture series is designed...

(13) Advanced 18 and older
No upcoming schedules

Gardening with the Seasons: Winter

UW Botanic Gardens @ Virtual Classroom

This session will cover dormant season pruning and transplanting for specific plant types, winter weeding and garden care, best tools and practices, and planning ahead for the new growing season. Though it seems there isn't much to do in the garden over winter, dormant season tasks can set the stage for a good gardening year.  When weather keeps us indoors, we can plan ahead for tasks and garden changes to be done in the months ahead....

(13) All levels 18 and older
No upcoming schedules

Gardening with the Seasons: Fall

UW Botanic Gardens @ Virtual Classroom

Autumn is a dynamic season in the garden.   Many plants are heading into dormancy, while others are in a period of active growth. Doing the right gardening tasks now can set the stage for next year's garden: adding new plants for seasonal interest or making changes to address problems observed over the past season. Some of the best things to do - or to avoid - at this time of year may seem counter-intuitive to some gardeners. This session will...

(13) All levels 18 and older
No upcoming schedules

Rose Pruning

UW Botanic Gardens @ Virtual Classroom

Learn the right way to prune roses: hybrid teas, climbers, & landscape roses. Class will cover the best time of year to prune, the right tools, and techniques for ensuring healthy long lasting roses. This lecture series is designed for those who work in landscape maintenance. Each lecture provides information on tools and techniques for quality pruning with better long-term results and customer satisfaction.

(13) All levels 18 and older
No upcoming schedules
Reset all filters.

No results found

Try removing some filters.

Garden Classes in Seattle are rated 4.4 stars based on 13 verified reviews from actual CourseHorse.com purchasers.

CourseHorse Gift Cards

  • Creative & unique gift for any occasion
  • Thousands of classes & experiences
  • No expiration date
  • Instant e-delivery (or choose a date)
  • Add a personalized message
  • Lock in a price with the Inflation Buster Gift Card Price Adjuster™
Buy a Gift Card
gift card with the CourseHorse logo gift card with the CourseHorse logo
Loading...