Knollwood Garden Center Events and Sales

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

Buddleia and Hibiscus Sale!

Sep 2, 2021 - Sep 5, 2021

Big Blooms, Big Color, and Butterflies

Thursday 9/2 - Sunday 9/5

Buddleia and Hibiscus

30% Off!

Both of these beautiful flowering plants offer bold color for a long time each summer, attracting butterflies and pollinators galore. Plant now to get good roots established this season, and don't forget the Bonide Root n' Gro with all your new plantings for the best success!
No further discounts or adjustments to prior sales.



Click to register

Fall Grass Seeding Sale!

Sep 2, 2021 - Sep 5, 2021

Thursday 9/2 - Sunday 9/5

All Bulk Grass Seed

50 Cents Off Per Pound!

If your lawn needs a little rejuvenation, has a few bald spots, r otherwise looks a little less than plush, this sale comes at a perfect time! Fall seeding is a great maintenance project to do yearly, and the dropping temperatures and more frequent rain make for a perfect environment.
Stop in: we'd be happy to help you choose the best Green Velvet Grass Seed for your lawn!


No further discounts or adjustments to prior sales.

Click to register

Surprise Houseplant Sale!

Aug 26, 2021 - Aug 29, 2021

Thursday 8/26 - Sunday 8/29

All Foliage Houseplants

20% Off!

This includes all of the hard-to-get, new arrivals, tried-and-trues, and houseplant classics. Had your eye on something special? Haven't checked out the new arrivals in a week or two, or need a little "green therapy"? The next four days are your chance to treat yourself to a new little friend!

No further discounts or adjustments to prior sales.


Click to register

Early Bird Mum Sale

Aug 19, 2021 - Aug 22, 2021

8" Hardy Mums are just $7.99

for Four Days Only!

Reg. $9.99, Thursday 8/19 -Sunday 8/22.

Just like Pansies in the Spring and Poinsettias at Christmas, Mums are the quintessential flower of Fall.
The rich warm colors reflect the autumn sunshine and soon-to-be-changing leaves. Whether you plan on planting in the ground or making new fall planters, nothing beats a mum for the color impact.

Click to register

Coneflower Celebration

Aug 19, 2021 - Aug 22, 2021

Four Days Only, Thurs. 8/19-Sun. 8/22

All Coneflowers 30% Off!

While supplies last.

Click to register

Hanging Basket Blow Out Sale!

Jul 1, 2021 - Jul 30, 2021

Limited Time!

Flowering Baskets Just $19.99

10" size, reg. $29.99

It's time for a pick-me-up! Freshly arrived flowering hanging baskets are looking gorgeous...Callibrachoa, Petunia, Vinca, Begonias, Purslane, Impatiens, something for everyone. Save $10 each!  While supplies last.

Annual Flats Sale

May 27, 2021 - Jun 1, 2021

Flowering Annual Flats  Now $5.00 Off!

Reg. $21.99

Fill lots of pots, or big stretches of flower beds with flat-grown annuals. Vinca, Impatiens, Begonias, Salvia, Petunias, and more give you more of what you love at a great price.


No further discounts. Vegetables not included.

Click to register

Select Hanging Basket Sale

May 13, 2021 - May 16, 2021

One For Sun, One For Shade

Geranium and Impatiens Hanging Baskets Now $5.00 Off!
Now thru Sunday, May 16
10" Plastic Baskets, reg. $29.99
No further discounts. These two varieties only, New Guinea Impatiens not included. 

Click to register

Summer Bulb Sale

May 13, 2021 - May 23, 2021

All Summer Bulbs Now 30% Off

Cannas, Gladiolas, Elephant Ears, and Lilies


No further discounts, potted plants not included.

Click to register

Classic Geranium Sale

Apr 29, 2021 - May 2, 2021

Thursday through Sunday 4/29-5/2 (four days only),

all 4 ½” pots of geraniums are just $5.49…that’s a savings of $1.50 per plant.  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 22, 2021 - Apr 25, 2021

Four days only*, Flats of Standard Impatiens and Wax Begonias for just $14.99!

Regularly $21.99 for 36 plants, this is a fantastic deal to fill your shady and sunny spots with summer-long waves of color!  These Impatiens are the new Downy Mildew-resistant varieties, too!

Click here to see the colors of impatiens available.

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

Click to register

Annual Garden Party

Apr 10, 2021 - Apr 11, 2021

Our Annual Garden Party is a chance to celebrate Spring and kick off the best season of the year: Gardening Season!  While we can't have our usual great seminars yet, we can still get a first look at all of the great new products and plants rolling in, and great deals too!

Enjoy 20% Off Quart-size Perennials, Grass Seed, Statuary, Furniture and Fountains, Dahlia Bulbs, Houseplants and more great specials. 

Click to register