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 three garden centers in Lake Oswego, Cedar Hills, and Seaside, 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 Lake Oswego, Cedar Hills, and Seaside. We look forward to growing with you.  

Apr
21

Kokedama & Moss Ball Workshop

  • Date:April 21, 2018
  • Location: Cedar Hills Lake Oswego Seaside

This recently re-popularized, ancient botanic art form uses moss to encase a plant’s roots wrapped with twine instead of using a pot. Our hand’s-on class will take you through the steps to create one ball using the plant of your choice and also teach you how to care for it after you take it home. Pre-registration required; $30 class fee covers materials used during workshop.

Event Info

Date: April 21, 2018
Time: 10am
Location: Cedar Hills

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Date: April 21, 2018
Time: 1pm
Location: Lake Oswego

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Date: April 21, 2018
Time: 10am
Location: Seaside

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Apr
28

Let’s Talk Tomatoes

  • Date:April 28, 2018
  • Location: Cedar Hills Lake Oswego

If you love garden-fresh tomatoes you may be willing to try almost anything for earlier ripening, more flavor or longer lasting crops. Having hosted an annual tomato tasting event for more than a decade, Nicole is quick to share her passion for all things tomato. She will talk about some of the top-voted varieties from years past, recommend several fantastic heirlooms as well as suggest hybrids developed right here at home. Growing tips and secrets used by successful local tomato growers will also be revealed. Whether you want to grow grafted or not, hybrid or heirloom, from seed or with started plants you will want to attend. Free class; pre-registration is required.

Event Info

Date: April 28, 2018
Time: 10am
Location: Cedar Hills

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Date: March 28, 2018
Time: 1pm
Location: Lake Oswego

Register
May
05

Spice It Up with Culinary Herbs

  • Date:May 5, 2018
  • Location: Cedar Hills Lake Oswego

Do you enjoy cooking & eating food from your garden? Fresh, homegrown herbs are easy to grow and an economical way to add a little gourmet to your everyday. Come learn about care and selection of herbs, how to use them in your home & kitchen garden and other ways to spice up your life!

Event Info

Date: May 5, 2018
Time: 10am
Location: Cedar Hills

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Date: May 5, 2018
Time: 1pm
Location: Lake Oswego

Register
May
05

Privacy Screens & Hedges

  • Date:May 5, 2018
  • Location: Seaside

Making a space that feels private/intimate in your urban garden can sometimes pose a challenge. Come learn about the best plants to use for creating privacy screens & hedges for a variety of conditions as well as planting and care information. If you’ve been feeling like you are gardening in a ‘fish bowl’ or providing entertainment for the neighbors & looking for solutions, this class is for you!

Event Info

Date: May 5, 2018
Time: 10am
Location: Seaside

Register
May
17

Sip & Craft: Create a Fairy Garden or Miniature Landscape

  • Date:May 17, 2018
  • Location: Lake Oswego

Mini Garden/Fairy Garden Workshop: Join our creative expert, and miniature gardening enthusiast, Nicole Forbes, to learn about this fun, new planting project. The workshop will include a selection of containers, appropriate small outdoor plants to use, mini-landscape design ideas as well as care and maintenance for your creation. If you’ve taken this class before, come learn how to take your miniature gardening to the next level.

Event Info

Date: May 17, 2018
Time: 5pm
Location: Lake Oswego

Register
May
19

Workshop: Create a Fairy Garden or Miniature Landscape $40

  • Date:May 19, 2018
  • Location: Cedar Hills Lake Oswego Seaside

Mini Garden/Fairy Garden Workshop: Join our creative expert, and miniature gardening enthusiast, Nicole Forbes, to learn about this fun, new planting project. The workshop will include a selection of containers, appropriate small outdoor plants to use, mini-landscape design ideas as well as care and maintenance for your creation. If you’ve taken this class before, come learn how to take your miniature gardening to the next level.

Event Info

Date: May 19, 2018
Time: 10am
Location: Cedar Hills

Register
Date: May 19, 2018
Time: 1pm
Location: Lake Oswego

Register
Date: May 19, 2018
Time: 10am
Location: Seaside

Register
May
26

Privacy Screens & Hedges

  • Date:May 26, 2018
  • Location: Lake Oswego Cedar Hills

Making a space that feels private/intimate in your urban garden can sometimes pose a challenge. Come learn about the best plants to use for creating privacy screens & hedges for a variety of conditions as well as planting and care information. If you’ve been feeling like you are gardening in a ‘fish bowl’ or providing entertainment for the neighbors & looking for solutions, this class is for you!

Event Info

Date: May 26, 2018
Time: 10am
Location: Cedar Hills

Register
Date: May 26, 2018
Time: 1pm
Location: Lake Oswego

Register
Jun
02

Attracting Pollinators & Beneficial Insects

  • Date:June 2, 2018
  • Location: Cedar Hills Lake Oswego Seaside

Providing food and shelter for our local pollinators, butterflies & beneficial insects can increase your harvests and add a certain “buzz” to your garden. We will discuss simple ways to attract more bees & butterflies and show off some of the plants they find irresistible as well as talk about other helpful insects for keeping plants healthy and looking their best.

Event Info

Date: June 2, 2018
Time: 10am
Location: Cedar Hills

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Date: June 2, 2018
Time: 1pm
Location: Lake Oswego

Register
Date: June 9, 2018
Time: 10am
Location: Seaside

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Jun
09

Ferns & Friends: Successful Shade Gardening

  • Date:June 9, 2018
  • Location: Cedar Hills Lake Oswego

Event Info

Date: June 9, 2018
Time: 10am
Location: Cedar Hills

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Date: June 9, 2018
Time: 1pm
Location: Lake Oswego

Register
Jun
14

Sip & Craft: Bonsai for Beginners

  • Date:June 14, 2018
  • Location: Lake Oswego

Learn the basics of bonsai and create one for yourself (or one just in time for Father’s Day). We will learn to root-prune and pot-up an outdoor bonsai suitable for beginners and discuss care, maintenance and training techniques

Event Info

Date: June 14, 2018
Time: 5pm
Location: Lake Oswego

Register


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.