Winter at Cylburn

Winter at Cylburn

Winter China Fir

Happy Holidays! In a few days it will officially be winter. The gardens have been put to bed and tender plants moved to warm quarters. The CAA staff is still working on the grounds but in the coming months activities will shift indoors to perusing seed and plant catalogues and preparing for the spring. That doesn’t mean there isn’t anything to see at Cylburn! There are plenty of plants and trees that choose the “off” season to show their stuff. Here are just a few to look for on your next winter hike here.

December Cylburn Hawthorn TreeCrataegus viridis ‘Winter King’ (‘Winter King’ Southern Hawthorn)

The brilliant red berries on this cultivar of our native Hawthorn make it a show-stopper. ‘Winter King’ is loved for its fragrant white blooms in spring and its thornless stems, making it much kinder to the gardener than the traditional thorny Hawthorns. Find a group of five ‘Winter Kings’ at the southwest corner of the lower Vollmer parking lot.


December Cylburn WinterberryIlex verticilatta ‘Red Sprite’ (Winterberry)

This deciduous holly is known for its large, vividly red berries, a favorite with our birds. ‘Red Sprite’ is a female cultivar of the native winterberry, easily grown in sun or semi-sunny locations, adaptable to very wet soil conditions. It fruits well if a male pollinizer such as ‘Jim Dandy’ is nearby. Find ours on the south side of the Larrabee Garden.

December Cylburn HollyIlex x koehneana ‘Ruby’ (Koehne Holly)

‘Ruby’ is a cultivar Koehne holly, a cross between Ilex aquifolium and I. latifolia. The shiny dark green leaves make Koehne hollies an attractive choice when a large dense holly is desired (it typically grows to over 15’ and is almost as wide). The clusters of berries on an attractive pyramidal shape are widely admired. Plant this and other evergreen hollies in full sun. Cylburn’s ‘Ruby’ is located on the east side of the East Oval Holly Collection, near several other Koehne cultivars.

December Cylburn JuniperJuniperus virginiana ‘Grey Owl’ (Red Cedar)

The beautiful blue-grey foliage of this native cedar shows off prolific bluish berries in the late fall and early winter. Native to this region, this easily grown conifer is an excellent landscaping choice for a full sun location. Cylburn has a conifer collection in the woods, on the north side of the asphalt walkway near to the north ends of the greenhouses.

December Cylburn Scotch PinePinus sylvestris ‘Gold Coin’ (Scotch Pine)

This Scotch Pine is pyramidal with mint green foliage in the summer that turns bright golden yellow in the cooler temperatures of fall and winter. Plant this bright pine in full sun. Also a part of the Moudry Conifer Collection near the western end of the planting.


Winter is also a time to get close to the trees and appreciate things that may not be as noticeable in other seasons, like the texture and patterns on the bark. Two examples are the Ulmus parvifolia (Chinese Elm or Lacebark Elm) and the Lagerstroemia ‘Acoma’ (Crape Myrtle).

There’s no reason to wait until spring to come to Cylburn — The grounds are beautiful year round. Now they’re especially festive covered in fresh snow! On behalf of all of us at the Cylburn Arboretum Association, all the best for a wonderful winter.


SnowMansionTHANK YOU! We are grateful for the support we’ve received this year! The Cylburn Arboretum Association is the nonprofit friends group for Cylburn and we depend on the generosity of our donors, members, volunteers, sponsors and friends to enrich and enhance the arboretum for the community. To learn more about what a gift to the Cylburn Arboretum Association can do, click here. If you’d like to make a year-end donation, click here. Special thanks to our partners at Lifebridge Health for making our What’s in Bloom posters possible for visitors each month. They’ll direct you with maps on where to find the plants listed above and others each season. Hope to see you at Cylburn soon and thanks again!

An Evening of Celebration & Support

An Evening of Celebration & Support

On September 15, friends of the Cylburn Arboretum Association gathered at Discover Cylburn to enjoy each other’s company, and to learn about and celebrate the CAA’s work. It was a lovely evening and we raised more than $20,000 to help support educational programs, the arboretum’s tree collection and gardens, scholarships for summer camp, environmental initiatives with partners, and so much more! Thanks to our sponsors, guests, donors, members, volunteers, and so many others who contributed to the evening’s success! A special thanks to our Discovery Sponsors  CFG Capital Funding Group & DLA Piper and our Partners Transamerica and Sir Alfie of Baltimore! The CAA’s work to enrich and enhance Cylburn for the Baltimore community would simply not be possible without all of this support. A photo recap:

Summer’s in bloom!

Summer’s in bloom!

In addition to trees and pathways, trails and the mansion, there are many gardens at Cylburn with a variety of flowers of all kinds. In fact, Cylburn is classified as an arboretum, but is also one of Baltimore’s marquee public gardens. Summer is peak time for many of the beauties to be discovered on the grounds. Here are just a few you’ll find blooming now.

June Foxtail Lily 3

Eremurus sp. (Foxtail Lily)

This striking plant bears a tall stalk of yellow/orange-ish indeterminate flowers (“indeterminate” meaning that the flowers open from the base up, in contrast to “determinate” flowers which open from the top down).  This planting of Foxtail Lily bulbs attracts more “What IS that flower?” questions than most of the others.

Where: Across from the Mansion Circle, next to a weeping beech.

June Larkspur CloseupConsolida ajacis (Larkspur)

These bright blue and pink spikes are show-stoppers. Considered to be an annual alternative to delphinium, which struggles in this climate, the larkspur is an enthusiastic bloomer, and re-seeds itself every year. Larkspur is the “Flower of the Month” for July evoking feelings of joy, levity and love.

Where: Find them in the Mansion Circle and the Worthley Garden.

Asclepias tuberosa (Butterfly Weed)

This colorful native perennial is the sole host plant for Monarch butterflies, providing critical habitat for this endangered species.

Where: The orange variety can be found on the south edge of the Larrabee Garden and scattered other places. A less common yellow flowering cultivar ‘Mellow Yellow’ grows in the Mansion Circle.

June Butterfly Weed

June CactusOpuntia sp. (Cactus)

Bright yellow flowers prove that perennial cactus does grow and thrive in our non-desert climate! This one is surrounded by Sedum sexangulare (Stonecrop), a groundcover that can be found sprawling throughout many of Cylburn’s gardens.

Where: Find it in on the berm in the Worthley garden.

June Indian PinkSpigelia marilandica (Indian Pink)

This bright red and yellow native perennial grows in a large clump and is a favorite of hummingbirds. Although the genus name, Spigelia, honors Adrian van den Spiegel (1578-1625), a Flemish anatomist, the specific epithet, marilandica, means “of Maryland”.

Where: A large clump is found in front of the Vollmer Center, on the right as one faces the building. Also in the Larrabee Garden by the mansion.


June BetonyStachys densiflora ‘Hummelo’ (Betony)

This bright pink perennial has a long bloom season, from early June through July or even August. You can also find Stachys officinalis ‘Pink Cotton Candy’ by the Vollmer Center. Less well known that Stachys byzantina (Lamb’s Ears), these Stachys are well-behaved, dependable perennials with an orderly habit.

Where: In the Larrabee Garden by the mansion.

Whenever you visit Cylburn, keep an eye out for our What’s in Bloom posters. Thanks to our partners at Lifebridge Health for making these informative pieces possible for visitors. They’ll direct you with maps on where to find these flowers and others throughout the season. There are many gardens scattered throughout the grounds of Cylburn with more blossoms than can fit on one poster, so we hope you’ll explore! Find more info here. You may see our dedicated gardeners and volunteers out there planting, weeding or watering — They help to make all of this possible. We’re always looking for additional help so if you’re interested in joining our efforts you can find more information on how to volunteer here, or how to become a member here. Before you go, here are some more of this season’s blossoms!


Clockwise: Agastache rupestris (Threadleaf Giant Hyssop); Rudbeckia maxima (Great Coneflower); Rudbeckia (Black-eyed Susan); Hesperaloe parviflora (Red Yucca); Monarda ‘Jacob Cline’ (Bee Balm); Salvia ‘Purple rain’; Ratibida (Prairie Coneflower); Asiatic lily; Biker circling the Circle Garden; Hypericum calycinum (St. John’s Wort); and Mansion Garden.






New Trees & New Ways to Explore Cylburn Arboretum

New Trees & New Ways to Explore Cylburn Arboretum

We’re delighted to announce a significant new planting of sixty-two large deciduous shade and specimen trees at Cylburn, as well as two new ways for visitors to explore the arboretum and learn about our current trees, gardens and history. Cylburn is Baltimore City’s only arboretum and takes its mission as a “Tree Museum” seriously, aiming to expand its collection and other offerings for the enjoyment and education of everyone.

Blog June Three Newbies

Three new trees.

Along the main entrance drive and Greenspring Avenue, a “Piedmont Woods” has been added. Trees native to our Mid-Atlantic region well adapted to our soil, climate and conditions have been thoughtfully selected and planted by a team including the Forestry Division of Baltimore City’s Department of Recreation and Parks, Natural Concerns, Inc., and Mahan Rykiel Associates. Careful consideration has been given to the location of each new tree including water tolerant and charming Magnolia virginiana (Sweetbay) chosen to flank the stone bridge on the main entrance road as visitors enter the arboretum.

A second planting includes the addition of large shade trees along Mansion Way between the Vollmer Center and the Mansion. In a few years, as these trees take root and grow, they’ll provide desirable respite for walkers approaching the Mansion. Here’s a list of all the Cylburn 2017 New Trees. Many of the trees have been planted this spring and others will be added in the fall.

This central walkway currently includes some of the arboretum’s marquee trees and we’re excited to announce a new easy-to-use online “tree tour” that provides in-depth information on thirteen of them. Find the link here and on our website — You can use it through any web browser on your phone, computer or tablet! The Tree Tour was developed by a team of Cylburn volunteers with the financial support of The Eliasberg Family Foundation, Inc., the mapping expertise of RK&K, and production assistance from Kathryn Johnston Concept & Design.

Another new way for visitors to explore Cylburn is a Scavenger Hunt created by our friends at Baltimore Green Map. Simply visit the app store on your phone, search for and download Actionbound, then find our “bound” by typing in Cylburn. The child-friendly app will take you on an interactive tour of the grounds, asking you to stop, look, listen and photograph. It’s a fun way to learn a little bit more about some of our treasures! We’ll have paper versions of this hunt available in the Vollmer Center, where you can also find some other maps and materials about Baltimore’s green places.

We hope you’ll visit soon to enjoy Cylburn and all that it has to offer! Adding species not currently present at the Arboretum to increase the diversity and beauty of our collection and also providing ways for the public to access information about our trees and gardens is exciting indeed.

Blog June Team

It takes a team to plant a tree — We are grateful to our partners in helping 62 new trees find a home at Cylburn. They’ll be tending the young trees for three years to ensure a strong, healthy future. Visitors should enjoy the trees for generations to come! Partners have also helped us to develop two new ways to enjoy the arboretum — A virtual Tree Tour loaded with information and an interactive Scavenger Hunt fun for the whole family! Thank you!





May Trees & Shrubs in Flower

May Trees & Shrubs in Flower

May is the month that many of Cylburn’s trees and shrubs are in bloom with extravagant and fragrant flowers. It is the month of the Chinese Fringe Tree and the Cockspur Thorn, the Beautybush and the Mock Orange. Here are just a few of the beautiful specimens that you’ll see if you visit us in the next couple of weeks.

If you begin your walk in the Vollmer parking lot, you can pick two paths up to the Visitor Center. On one, the Philadelphus xSnow Dwarf’ (Mock Orange) is covered in fragrant white blossoms. In the garden, this easy to grow shrub can be espaliered on a wall, trellis or fence. Along this path, it is simply planted in clusters. On the other path, Itea virginica ‘Little Henry’ (Virginia Sweetspire – pictured below) blooms under the draping limbs of a Cladrastis kentuckea (American Yellowwood).

Blog May Sweetspire

In front of the Vollmer Center you will find some dogwoods still blooming. Fun fact: The white “petals” of the dogwood blossom are actually bracts, or specialized leaves. The flowers themselves are tightly clustered in the center. The variety at the Vollmer Center is called Cornus rutgersensis ‘Rutdan’ and has blushing pink white leaves fading quickly now in the heat. Also there the Calycanthus ‘Aphrodite’ (Sweetshrub – pictured below) is showing off deep red blossoms.

Blog May Sweetshrub

Continue up the path and consider following signs to the Greenhouse which will take you on a circuitous walk past a selection of Cylburn’s flowering shrubs. Along the way, you’ll see Cotinus coggygria (Smoke Tree) and the lovely Kolkwitzia amabilis (Beautybush). This graceful and old-fashioned shrub, which is rarely found in garden centers, has exuberant pink blossoms (see below). As difficult as it is to find it isn’t fussy at all loving sunny, dry conditions. Next to the Beautybush is the tall, upright shrub Deutzia with its profusion of white flowers. These particular shrubs are not fully unidentified (others on the opposite side of the path are) but are nonetheless very pretty! Spiraea nipponica (Snowmound) can also be found along this walk.

Blog Kolkwitzia amabilis

As you emerge from this walk look straight ahead at the impossible-to-miss Chionanthus retusus (Chinese Fringe Tree). The genus name comes from the Greek words “chion” meaning snow and “anthos” meaning flower. Indeed the trees in bloom look like they’re covered in snow. Fun Fact: This species of tree is dioecious — male and female flowers are on different plants (although there are a few exceptions). Cylburn has three Chinese Fringe Trees; the larger two are more floriferous and are females. Beyond them if you get a bit closer, you might also notice the red flowers of the Aesculus pavia (Red Buckeye).

Blog Fringe Tree.jpg

To your right, on the West Lawn between the beeches and the large sugar maple, is the fantastic, thorny Crataegus crus-galli (Cockspur Thorn). Look but don’t get too close as the thorns are a full 4 to 5 inches of danger (see below)! The thorniness of Hawthorns led to the development of the ‘Winter King’ cultivar (Cylburn has a grove of five by the Vollmer parking lot) but this Cockspur is truly fascinating, like a tree from a medieval fairy tale. Our thorny beauty was pruned by Matt Mitcheltree and his team at North Hill Tree Experts  in spring 2016. We are grateful to them not only for their contribution of this service to Cylburn, but for their bravery in taking it on.

Blog Cockspur.jpg

If you choose to continue to tour the Mansion Gardens with their profusion of poppies, allium, peonies and innumerable other flowers, you’ll no doubt notice the Physocarpus opulifolius ‘Mindia’ Coppertina (Ninebark). Its unique “coppery” color is a standout wherever it is planted and its limbs drape with beautiful blossoms (see below). Fun fact: This native plant is fantastic now but also interesting in the winter, getting the name “ninebark” from the peeling bark on its mature branches that reveals an array of colors.

Blog Ninebark.jpg

We hope you’ll come see these fine trees and shrubs for yourself. There is an array of flowers as well — the material of another blog post! If you can’t remember all of this information, stop to see our “What’s in Bloom” posters next to the Vollmer Center, across from the Rain Garden, and on the Mansion porch — Thanks to our partners at Lifebridge Health we are able to offer this information for visitors each month. You can always visit our website, Facebook and Instagram pages for more images and information about the arboretum. Hope to see you at Cylburn soon!

Here are a few more photos of trees and shrubs currently blooming.

Pictured above clockwise: How about a picnic by the Cockspur Thorn (just don’t get too close); Mock Orange; Red Buckeye; Dogwood; Snowmound Spiraea; Chinese Fringe Trees at their prime on Market Day; and Smoke Tree.