Greenwich Botanical Center is a non-profit volunteer organization dedicated to promoting horticulture, conservation, and the arts.
Greenwich Botanical Center is a non-profit volunteer organization dedicated to promoting horticulture, conservation, and the arts.
Greenwich Botanical Center is a non-profit volunteer organization dedicated to promoting horticulture, conservation, and the arts.
Greenwich Botanical Center is a non-profit volunteer organization dedicated to promoting horticulture, conservation, and the arts.

Annual Event:
May Gardener's Market

SATURDAY, MAY 6, 2023 | 9AM - 2PM

Join us for a day of fun, food and shopping in support of GBC! Our Annual Market features a variety of vendors offering everything from native plants to horticultural accessories to organic food products. Have a picnic on the grounds, shop till you drop, and make a difference in your community!

Shop, Savor & Support at May Gardener's Market

This annual fundraiser helps support the Educational and Outreach programs Greenwich Botanical Center provides to the community. Make a day of it! This one-day market features a wide variety of vendors who will gather in the Montgomery Pinetum to offer an array of items including native plants, horticulturally inspired accessories, home goods, and organic food products. Pick up breakfast or lunch from the food truck and have a picnic on the grounds!
MGM Member perks! Join us for our May Gardener's Market Early Buyers’ Sale for GBC Members. On Friday, May 5, 2023, the sale will open from 3:00 - 5:00 pm for GBC Members. From 5:00 - 7:00 pm, non-members are invited to come to have first pick of plant material for your garden before it opens to the public on the day of the market. Admission is $20 at the door for all.
We'll see you there!

2023 Plants Of The Year

Orders are now open for this year's stunning Plants of the Year!
Order deadline is Saturday, April 1, 2023
Pickup will be at GBC on Wed, April 26 and Thurs, April 27, 2023 from 10am – 4pm.

Caryopteris Clandonensis "Dark Knight"

Blooms with a profusion of dark blue flowers from early to late summer and boasts fragrant silver gray foliage. Works wonderfully as a boarder plant in beds or in containers due to it’s gorgeous flowers and compact habit. A nectar source for bees, butterflies, and hummingbirds.

Low maintenance
Full sun/partial shade
Height: 36- 48”
Width: 48”
Deer resistant
Rabbit resistant

$35 for one 2 gallon pot


Deutzia Gracilis "Nikko"

A wonderful spreading low mound sub shrub. It is quite showy with fragrant white blossoms
in spring. The bright green leaves on arching branches turn a lovely burgundy color in the fall.

Full sun/ partial sun
Height: 1.5-2ft.
Width: 4-5 ft.
Attracts pollinators

$35 for one 2 gallon pot


Allium "Windy City"

This ornamental onion's rich rose-purple buds open to orchid-pink flowers above emerald-green foliage.  Allium are beautiful additions to fresh or dried arrangements. Butterflies adore Ornamental Onion, but they are not favored by deer and rodents. It adds a perky, colorful focus to your late summer garden.  Low maintenance, and pollinator friendly. 

Blooms early to late summer
Full Sun
Low water needs
Height: 15”

$17.50 6" Jumbo Round - Limited Quantity


Astilbe x Arendsii "Chocolate Shogun"

New! This adaptable species is more sun and drought tolerant than typical Astilbe. It has handsome, glossy chocolate-bronze foliage with pink-blushed flower panicles in early summer. The lush deeply-cut bronze foliage remains attractive for the entire growing season.

Blooms early to late summer
Deer resistant
Height: 24”
Keep Moist

$17.50 6" Jumbo Round


Dianthus Kahori "Border Pinks"

Dianthus Kahori – Border Pinks

This new outstanding variety from Japan forms a low clump of grassy grey-green foliage, with a long summer display of fragrant, semi-double, lilac-pink blooms. Well suited for edging and in the rock garden. Attractive to butterflies.  Shearing plants back after main flush of bloom to maintain a tight, compact habit and promote additional bloom in late summer or early fall.  Evergreen. “Kahori” means fragrance in Japanese.

Full Sun
Blooms early summer to late summer
Attracts Butterflies
Deer Resistant
Drought Tolerant
Height: 6-8"
Spread: 8-12"

$12.50 6" Jumbo Round or 5 for $50.00


Geranium Rozanne "Cranesbill"

The award winner Rozanne® is a long-blooming and prolific blue-flowered Geranium. Flowers continue through the heat of midsummer, and the deeply cut leaves remain lovely, on low spreading plants. This is a true Geranium, not to be confused with the annual Pelargonium. Perennial Geraniums are lovely plants that grow in full sun or partial shade and need soils with good drainage.

Sun to Part Shade
Blooms June – September
Height: 18” 
Spacing: 18”
Deer resistant

$12.50 6" Jumbo Round


Lavandula Angustifolia "Vintro Blue"

The Vintro™ series from Syngenta is group of lovely English lavenders with sturdy upright blooms all summer long over compact and mounded blue-green evergreen foliage. Heat and drought tolerant once established. Deer and rabbit resistant. Attracts butterflies, hummingbirds and pollinator bees to the garden. Good overwintering and tolerant of winter wet better than other types of lavender. Makes great cut flowers and sachets too. 'Compact Blue' is tidy and cute in a container or in the garden. Good drainage is a MUST for all lavenders.

Full Sun
Blooms Spring to Fall
Hardiness zone: 5-9
Height: 12 - 14"

$12.50 6" Jumbo Round


Phlox Paniculata "Flame Coral"

The color of a pretty pink sky at twilight, the fragrant clusters sizzle with bright coral pink flowers with violet eyes. These smaller-statured Garden Phlox from the Flame™ Series offer good disease resistance, a bushy, compact habit and large fragrant flowers in midsummer. Lovely for the middle of the border and containers.  Good cut flower.

Blooms mid-summer to early fall
Full Sun
Height: 16-20"
Spacing: 18"
Attracts Butterflies and Hummingbirds
Prefers moist, humus-rich soil.

$12.50 6" Jumbo Round


Vaccinium "Friendship"

This is a mid size blueberry. It’s a cross between low bush and high bush blueberry. The berries
ripen in mid summer. Great for a patio containers.

Sun/partial shade
Height: 24-36”
Width: 36“

$40 for one 2 gallon pot


Mark Your Calendar for These Can't miss Events

Don't miss out on all the exciting events happening at the Greenwich Botanical Center! From nature walks to gardening workshops, there's something for everyone. Check out our events calendar now and plan your visit.


Greenwich Botanical Center
130 Bible Street, P.O. Box 1600
Cos Cob, Connecticut 06807
+1 203-869-9242
Get Directions
Mon - Fri :  9:00AM - 4:00PM
Saturday : Closed
Sunday : Closed