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.  

Feb
22

PRS Rose Pruning Clinic, Free Hand Tool Sharpening & Soil pH Testing

  • Date:February 22, 2020
  • Location: Cedar Hills

Get ready for spring with Portland Rose Society! Rose experts will be answering questions and demonstrating proper rose pruning techniques. Bring your hand pruners to be sharpened while you shop and a 1-cup bag of soil for free pH testing!

Event Info

Date: February 22, 2020
Time: 12:00-3:00 pm
Location: Cedar Hills

Register
Feb
23

Macramé Plant Hanger Workshop

  • Date:February 23, 2020
  • Location: Bridgeport Village

Join Julia Irinaga of PDX Houseplants to create your very own plant hanger using macramé, the art of knotting cord or string in patterns to make useful and decorative articles. No previous experience required! Learn several fundamental knots to help make your plant hanger and begin a base knowledge of macramé that can be built upon in the future. $45 fee covers all materials; pre-registration required.

Event Info

Date: February 23, 2020
Time: 1:00 pm
Location: Bridgeport Village

Register
Feb
29

Indoor Kokedama Workshop

  • Date:February 29, 2020
  • Location: Cedar Hills

This recently re-popularized, ancient botanic art form uses moss to encase a plant’s roots and is wrapped with twine instead of using a pot. Our hands-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. $35 class fee covers materials used during workshop; pre-registration required.

Event Info

Date: February 29, 2020
Time: 10:00 am
Location: Cedar Hills

Register
Feb
29

Roses Made Easy

  • Date:February 29, 2020
  • Location: Lake Oswego

Have a sunny patch of ground where you desire stunning summer color, year after year? Plant roses and reap years of rewarding bouquets and blooms! We will share our tips for successful rose growing, talk about different types and their uses, and highlight some of our favorite varieties to grow. Free class; pre-registration required.

Event Info

Date: February 29, 2020
Time: 1:00 pm
Location: Lake Oswego

Register
Feb
29

PRS Rose Pruning Clinic, Free Hand Tool Sharpening & Soil pH Testing

  • Date:February 29, 2020
  • Location: Lake Oswego

Get ready for spring with Portland Rose Society! Rose experts will be answering questions and demonstrating proper rose pruning techniques. Bring your hand pruners to be sharpened while you shop and a 1-cup bag of soil for free pH testing!

Event Info

Date: February 29, 2020
Time: 12:00-3:00 pm
Location: Lake Oswego

Register
Mar
07

Repotting Pallooza: All About Repotting Indoor Plants

  • Date:March 7, 2020
  • Location: Cedar Hills Lake Oswego Bridgeport Village

This class will cover when to repot, what size and style of container is best, and what type of soil to use for different types of indoor plants. We will demonstrate how to properly remove and replant several popular varieties of houseplants and make sure you have the confidence to go home and do it yourself! Free class; pre-registration required.

Event Info

Date: March 7, 2020
Time: 10:00 am
Location: Cedar Hills

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Date: March 7, 2020
Time: 1:00 pm
Location: Lake Oswego

Register
Date: March 7, 2020
Time: 3:00 pm
Location: Bridgeport Village

Register
Mar
14

Go Wild with Native Plants & Their Cultivars

  • Date:March 14, 2020
  • Location: Cedar Hills Lake Oswego

Adding native plants to your garden helps support local bird population, boosts pollinator numbers, and can also reduce your garden’s water usage and maintenance needs. Learn how to grow our favorite native plants and get information on area habitat certification programs. Free class; pre-registration required.

Event Info

Date: March 14, 2020
Time: 10:00 am
Location: Cedar Hills

Register
Date: March 14, 2020
Time: 1:00 pm
Location: Lake Oswego

Register
Mar
21

Indoor Kokedama Workshop

  • Date:March 21, 2020
  • Location: Bridgeport Village

This recently re-popularized, ancient botanic art form uses moss to encase a plant’s roots and is wrapped with twine instead of using a pot. Our hands-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. $35 class fee covers materials used during workshop; pre-registration required.

Event Info

Date: March 21, 2020
Time: 3:30 pm
Location: Bridgeport Village

Register
Mar
21

Spring Lawn Care

  • Date:March 21, 2020
  • Location: Cedar Hills Lake Oswego

Creating and maintaining a golf course-quality patch of lawn can take a bit of know-how and a little elbow grease. Now is a great time to renovate or begin preparing for a new lawn planting project! Come learn tips and techniques used by professionals to get you off to the best start. Free class; pre-registration required.

Event Info

Date: March 21, 2020
Time: 10:00 am
Location: Cedar Hills

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Date: March 21, 2020
Time: 1:00 pm
Location: Lake Oswego

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Mar
28

Indoor Plant Propagation

  • Date:March 28, 2020
  • Location: Cedar Hills Lake Oswego Bridgeport Village

Make more plants by learning how to propagate the ones you have! We will discuss some of the easiest plants to propagate and teach you the most common methods such as growing from cuttings, divisions, runners, and air layering. Free class; pre-registration required.

Event Info

Date: March 28, 2020
Time: 10:00 am
Location: Cedar Hills

Register
Date: March 28, 2020
Time: 1:00 pm
Location: Lake Oswego

Register
Date: March 28, 2020
Time: 3:00 pm
Location: Bridgeport Village

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.