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

The Test Of Time: Perennials Worth Planting

Apr 12, 2026

Sunday April 12, 12:00

Mike Benedict from Millcreek Gardens, one of our favorite growers will talk about the countless new plant introductions pass through their greenhouses each year. Some prove their value and become long-lasting garden staples—but which ones rise to the top, and how are they chosen? In this session, we explore the perennials of 2026 that continue to impress and show true staying power.

Call 937-426-0861 to register.

 

 

Native Plants That Will Transform Your Ohio Garden

Apr 11, 2026

Saturday, April 11, 10:00 am

There’s something very special about native plants.  Pat Greeson from Natorp’s Nursery is going to talk about why we should care about natives and their benefits.  He will introduce us to native plants that can transform your garden.  You may be surprised that some of the plants you already have are natives!

Call 937-426-0861 to register.

 

Garden Party!

Apr 11, 2026 - Apr 12, 2026

Mark Your Calendars!

Saturday & Sunday,  April 11 and 12

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, Fountains, Houseplants, Wind Chimes, Grass Seed and more!  Two days only, no adjustments to prior sales.

Free Seminar: Reducing Your Chemical Footprint

Mar 28, 2026

Saturday March 28, 10:00 am

We are all looking for balance in our lives.  And while well aware of the effects of chemicals on the environment, we still want our gardens and landscapes to thrive.  John Scott will share his tips and techniques for making organics work for you.  He will also discuss how to responsibly use chemical options when they are necessary.  It's all about balance and observation!

Please call 937-426-0861 to register.

Free Seminar: The Backyard Cutting Garden

Mar 21, 2026

Saturday, March 21 at 10:00 am

This seminar and slideshow is presented by Ronda Foreman, owner and grower of Flygirl Flowers in Beavercreek. They are a specialty cut flower farm offering amazing fresh cut flowers from Spring thru Fall.

Ronda will discuss warm and cool season flowers, and everything in between. She will discuss planning, bulbs, perennials, direct seeding and transplants, plus great shrubs and perennials you can find at Knollwood! Stick around for Q&A, and make your gardens work for you! This is something anyone can do!

Please call 937-426-0861 to register. All seminars are free!

Now Accepting Applications

Feb 26, 2026 - Mar 9, 2026

Winter Seeding Event!

Feb 20, 2026 - Feb 21, 2026

Fri. & Sat. 2/20-2/21/2026

All Grass Seed 20% Off

+One Free Pound with ANY purchase!

This weekend should be a prime opportunity to start restoring your lawn:

Join Knollwood's John Scott from 9:00 on Saturday for answers to all your questions about winter seeding with Green Velvet Grass Seed, the local source of all of our grass seed.

Maintaining and improving the health of your lawn starts now, while the ground's still cold! Winter seeding easily improves the thickness and health of your lawn. Questions about how to get a weed "situation" under control? We can help you make a plan for that too.

Houseplant and Pottery Sale

Feb 12, 2026 - Feb 21, 2026

Thursday, February 12 Thru Saturday, February 21

20% Off All Houseplants and Flowering Plants!

Bonus: 20% Off Pottery

Consider this our Valentine to you, our fellow houseplant lovers! Barb has packed the greenhouse with loads of fun, interesting, and special plants, just in time for treating the plant lover in your life (especially if that's yourself)!  Closed Sunday.

Click to register

Weather Hours

Jan 25, 2026 - Jan 31, 2026

We will open at 10:00 am thru Sat.  1/31

Check back for updates,

and stay safe!

Click to register

Christmas Decor 75% Off!

Jan 2, 2026 - Jan 10, 2026

All Christmas Gifts and Decor, Fresh Pine, Poinsettias, Gourmet Treats, Stocking Stuffers

All sales final, no further discounts.

Christmas Decor 50% Off!

Dec 26, 2025 - Dec 31, 2025

All Christmas Gifts and Decor, Fresh Pine, Poinsettias, Gourmet Treats, Stocking Stuffers

All sales final, no further discounts.

Click to register

Poinsettia Sale, Christmas Sale

Dec 12, 2025 - Dec 18, 2025
poinsettia

20% Off All Poinsettias

30% Off All Other Christmas!

The classic holiday flower in an outstanding assortment of colors from shades of red, burgundy, pink, white, marbled, and more.  A timeless gift for friends, clients and co-workers...

Carry out only, no further discounts.  Does not apply to advance orders.