Events, Classes & Workshops

Grow your gardening knowledge & skills with Dennis’ 7 Dees! View free classes, hands-on workshops and seasonal events coming up this month. Check back for monthly updates and new postings!

Garden Classes & Workshops

Grow your gardening knowledge with Dennis’ 7 Dees! Our five garden centers in SE Portland, Lake Oswego, Cedar Hills, Seaside, and Bethany, OR offer free seminars and hands-on workshops every week throughout the year to help you succeed in your garden. Whether you’re first trying out your green thumb or are a seasoned gardener, our classes and events will give you lots of great ideas and unique ways to express your creativity.

At Dennis’ 7 Dees, we have a passion for plants, and we want to share it with our friendly neighbors and communities. From learning how to care for roses to growing your own edible garden and everything in between, you’re sure to find something fun and educational for you and your family.

Check back regularly for new events and schedule updates at Dennis’ 7 Dees Garden Centers in SE Portland, Lake Oswego, Cedar HillsSeaside, and Bethany. We look forward to growing with you.  

Sep
23

All About Ornamental Grasses

  • Date:September 23, 2017
  • Location: Cedar Hills Lake Oswego SE Portland

Tune up your garden with some late-season pizazz! Grasses can provide color, texture, structure & movement in your landscape with minimal maintenance. Discover the best ornamental grasses to grow, what perennials and shrubs compliment them, and their basic care and maintenance.

Event Info

Date: September 23, 2017
Time: 10am
Location: Cedar Hills

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Date: September 23, 2017
Time: 1pm
Location: Lake Oswego

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Date: September 23, 2017
Time: 3pm
Location: SE Portland

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Sep
30

Fall Container Combinations

  • Date:September 30, 2017
  • Location: Cedar Hills Lake Oswego SE Portland

A planted container filled with seasonal combinations greatly enhances your porch, garden or entryway. Come learn what plants look great for this time of year and how to keep your creations looking fresh & lively through the fall and winter months. Watch a container planting demonstration during the class and get inspired to make your own!

Event Info

Date: September 30, 2017
Time: 10am
Location: Cedar Hills

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Date: September 30, 2017
Time: 1pm
Location: Lake Oswego

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Date: September 30, 2017
Time: 3pm
Location: SE Portland

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Oct
07

Don’t Leave in the Cold: Winterizing Your Sprinkler System

  • Date:October 7, 2017
  • Location: Lake Oswego Cedar Hills

Join our Residential Irrigation Manager for an informative and interactive class where we cover how, when, and why we winterize our sprinkler systems. There will be time available after class for individual questions.

Event Info

Date: October 7, 2017
Time: 10am
Location: Lake Oswego

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Date: October 7, 2017
Time: 1pm
Location: Cedar Hills

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Oct
07

Landscape Pruning Series: Pruning 101 & Perennial Division

  • Date:October 7, 2017
  • Location: Cedar Hills Lake Oswego

When a plant needs pruning, some gardeners blindly whack while others timidly snip but few have the confidence and knowledge to do the job well. This class will cover basic tools, techniques & timing for pruning common landscape plants and also discuss/demonstrate how to divide perennials.

Event Info

Date: October 7, 2017
Time: 10am
Location: Cedar Hills

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Date: October 7, 2017
Time: 1pm
Location: Lake Oswego

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Oct
14

Landscape Pruning Series: Pruning Ornamentals for Shape & Structure

  • Date:October 14, 2017
  • Location: Cedar Hills Lake Oswego

This class will cover how and when to prune common woody landscape plants to improve health and enhance their beauty. From maintaining topiary forms and artfully pruning Japanese maples to rejuvenating or recovering a poorly cared for specimen; come away from this session with confidence and a plan.

Event Info

Date: October 14, 2017
Time: 10am
Location: Cedar Hills

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Date: October 14, 2017
Time: 1pm
Location: Lake Oswego

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Oct
21

Sedum Pumpkin Workshop

  • Date:October 21, 2017
  • Location: Cedar Hills Lake Oswego

This hand’s-on workshop teaches how to use natural materials including succulents to dress up pumpkins to add a touch of craft to your holiday decorations. Browse our selection of fall color and seasonal items available to welcome you and your guests to your home. All ages welcome! $35 class fee includes all materials needed for a finished project (including pumpkin); Pre-registration is required.

Event Info

Date: October 21, 2017
Time: 1pm
Location: Lake Oswego

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Date: October 21, 2017
Time: 10am
Location: Cedar Hills

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Oct
28

Landscape Pruning Series: Pruning Small Fruits & Berries

  • Date:October 28, 2017
  • Location: Cedar Hills Lake Oswego

Many gardeners have recently added more edibles to their landscapes including cane berries (raspberries, blackberries), blueberries, strawberries, grapes and more. Come learn how to care for these plants to ensure bountiful harvests for years to come by knowing proper pruning techniques and timing.

Event Info

Date: October 28, 2017
Time: 10am
Location: Cedar Hills

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Date: October 28, 2017
Time: 1pm
Location: Lake Oswego

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Meet Instructor Nicole Forbes

Nicole has lived & gardened in Portland for more than 20 years and started working for Dennis Seven Dees in the late 1990s. She has experience in nearly every retail garden center job position that exists but has found her niche in teaching gardening classes and hosting events like our Annual Tomato Tasting. Nicole's love of plants and people is evident in her fun and energetic teaching style. She also writes many of our blog articles and helps with employee training at the garden centers.