Knollwood Garden Center Events and Sales in Dayton

Free Fall Seminar Series

Aug 15, 2019 - Aug 29, 2019

Our Fall Seminar Series is ready to go! 

Click here to view/print the whole lineup, and call to register for any or all of them!  Seminars are free; workshop fees are as noted and have limited spaces.

Holiday Hours

Dec 22, 2018 - Jan 2, 2019

Monday-Satuday 9:00-6:00, Sunday 11:00-5:00

Christmas and New Year's Eve 9:00-3:00

Closed Christmas and New Year's Day

New Winter Hours: (as of Dec. 26)

Monday-Friday 9:00-6:00

Saturday 9:00-5:00

Closed Sunday

Surprise Perennial Sale!

Jul 11, 2024 - Jul 14, 2024

It's peak season for our favorites, so let's have a sale!

All Perennials  25% Off

Four Days Only 

Thursday-Sunday, July 11-14

Click to register

Water Plant Sale!

Jun 14, 2024 - Jun 23, 2024

Water Garden Plants Now 25% Off

Your backyard pond has never looked so good!  Really nice selection of water hyacinths and hardy pond plants.  While supplies last.

Memorial Day Sales

May 21, 2024 - May 27, 2024

Thru Monday May 27

Tropical Flowering 25% Off

Hibiscus, Mandevilla, Gardenia, and more

Annual Flats Now $19.99

Impatiens, Begonias, Zinnias, Marigolds, and more

Fountains 25% Off

Petunias 8" Pots now $9.99

reg. $12.99

Classic Geranium Sale

May 4, 2024 - May 5, 2024

Saturday & Sunday 5/4-5/5 (Two days only),

all 4 ½” pots of geraniums are just $6.99…Reg. $9.99!  Loved by gardeners for generations for their bold and bright blooms, perfect in the landscape, in pots, or in baskets.

Supplies are limited, while supplies last.  In stock geraniums only, no rain checks.

Click to register

The Original Impatiens and Begonia Sale

Apr 25, 2024 - Apr 28, 2024

Four days only*, Flats of Standard Impatiens and Wax Begonias for just $18.99, a savings of $8.00!

Regularly $26.99 for 36 plants, this is a fantastic deal to fill your shady and sunny spots with summer-long waves of color!  

*Or as long as they last. First come, first served.  Supplies will be limited, no rainchecks.

Seminar: Herb Lore & Lessons

Apr 14, 2024

Garden Party Sunday, 14  12:00

Herb Lore and Lessons Learned

There are some great stories and trivia in the history of herbs and their uses:  Let’s learn some fun facts and talk about strategies to get the most out of your herb plantings, whether decorative or edible.  Herbs are also valuable for our pollinator friends like bees and butterflies, we’ll talk about which ones they love the most.  Please call to register. 


Click to register

Garden Party!

Apr 13, 2024 - Apr 14, 2024

Mark Your Calendars!

Saturday & Sunday,  April 13 and 14

Our annual celebration kicking off the Spring gardening season, one of the best reasons to celebrate that we know! Great Specials and Sales, and all the fresh new plants and products you could hope for!

Save 20% on Quart-size Perennials, Statuary, Fountains, Spring Silk Flowers, Houseplants, Wind Chimes, Grass Seed and more!  Two days only, no adjustments to prior sales.

Seminar: Tried and True Annuals

Apr 13, 2024

Garden Party Saturday, April 13 10:00

Annuals: Tried And True, And Some Thing(s) New

John and Vickie have been polling their co-workers and are ready to share our secrets! What plants are tried and true, can’t do with out never miss annuals that we swear by, and how do we use them. Get the scoop on new varieties we think you’ll love to add to your rotation! Call to register.


Click to register

Seminar: The Boxwood Report

Apr 6, 2024

Saturday, April 6 10:00

The Boxwood Report: Your Questions Answered

If you have boxwood shrubs (and a lot of us do!) you may be aware that they have had some challenges in the last year.  Between a blight and some voracious moths, they can’t catch a break!  Come hear the latest updates and treatments, care strategies for prevention, and also some great alternative shrubs if you want a new look with the same good qualities.  Please call to register.



Click to register

Eclipse News

Apr 5, 2024 - Apr 8, 2024

Eclipse Heads Up! (With your safety glasses of course!)

On Monday, 4/8/24 we will be hitting the pause button so that all of our coworkers can fully experience the eclipse. From approximately 1:45 to 3:15, our scheduled coworkers will be only limitedly available to answer questions and process sales. Feel free to stop in and browse during this time (glasses not provided.)

Click to register

Seminar: Houseplants On The Move

Mar 23, 2024

Saturday, March 23 10:00

Houseplants On The Move

It seems like we just brought them inside for winter, and now we can’t wait to take our favorite plants outside for the summer.  Let’s talk about when and how to repot and cut back, when to start fertilizing, and how to transition to the outdoors (Hint: don’t just put them anywhere!) We’ll also introduce some new specimens we’ve gathered for you!   Please call to register.


Click to register

Seminar: A-List Perennials

Mar 16, 2024

Saturday, March 16 10:00   

A-List Perennials: Who, What, Where, and Why

We’re highlighting three standout perennials: Peonies, Clematis, and Hellebores.  Find out why we love them, where to plant them, and how to help them thrive.  We’re especially excited about some new-to-Knollwood varieties that we will give you a heads-up for this Spring! Please call to register.


Click to register