Main Greenhouse - Chrysanthemum Display
Gardens & Grounds - Dahlias, Synoptic Garden
In September we can enjoy both the end of summer and the beginning
of fall at Planting Fields. Annuals and perennials will continue their
floral displays until frost. The areas around the ROSE ARBOR and ornamental
pools near COE HALL are still alive with color. Even the roses, invigorated
by cooler weather, are still in bloom and the DAHLIA GARDEN will reach
its spectacular peak in the next few weeks. The PAUL CALLAHAN
DAHLIA DISPLAY, featuring over 400 Dahlia plants is located behind the MAIN
GREENHOUSE.
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Fruits and berries are beginning
to appear on many of our trees and shrubs, like the Crabapple Allee
behind the MAIN GREENHOUSE. A walk through the SYNOPTIC
GARDEN is very rewarding at this time of year. This five
acre garden is planted with shrubs and ornamental trees which grow
well on Long Island.A unique concept in gardening history,
these
beds are arranged alphabetically by scientific name,
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progressing from A-Z (Abelia to
Zenobia). Each plant is labeled with its scientific and common name, its
accession number and the country of origin. The garden changes through
the seasons and through the years so you may well see a new plant, an extraordinary
flower or unusual foliage you have never seen before. You may also find
some wildlife sharing the pleasures of the garden with you.
As you enter the SYNOPTIC
GARDEN, watch for the Franklinia, Franklinia alatamaha,
on your left. Blooming in August and September, Franklinia is a small
multi-stemmed plant with large white flowers with golden centers.
It was originally discovered by plant explorers John and William
Bartram in the 1760’s growing along the banks of the Alatamaha
River in Georgia. Fortunately, they brought plants and seeds back
home with them to Philadelphia, for when they returned to Georgia
after the Revolutionary War, the tree was not to be found again in
the wild. They named the tree, a relative of the Camellia and in
the tea family, in honor of their friend, Benjamin Franklin.
Continuing your walk back through the garden, note the several beautiful plants
in the “C” section. Blue Mist Caryopteris, Caryopteris x calndonensis,
has clusters of sky blue flowers. It is a woody, low-growing border plant. It
should be pruned to a few inches from the ground after it goes dormant in the
fall. Otherwise it is maintenance free. Callicarpa dishotoma, the Purple Beauty
Bush is a plain shrub with arching branches for most of the year. The flowers
have a sweet fragrance when they bloom in late July, but the showy purple berries
along the branches in September and October are the real reason for growing this
shrub.
The fruit of the Beauty Bush, which also has a white berry form,
is a favorite
of mockingbirds and other songbirds. The leaves of the Kousa Dogwood, Cornus
kousa, turn red in late August, and its raspberry-like fruit, attractive
to birds, adds much charm and color to the fall garden. Our native
Flowering Dogwood,
Cornus
florida, and the low-growing members of the Cotonester family all display
shiny red fruits at this time of year.
In Section “E” ,
the fiery leaves of Euonymus alatus, the Burning Bush, electrify
the scenery, and further on in the “P’ Section, the
orange fruit of Poncirus trifoliata, the Hardy Orange lends a tropical
air. This plant was discovered by a Bostonian while traveling in
northern China in the 1890’s. He brought it home and tried
to graft a Florida sweet orange onto the under stock to create
a winter hardy, edible
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orange. Unfortunately, the graft died, but the Hardy
Orange under stock flourished. Now this charming small tree is grown as
a conversation piece and as hedge material. The Spiraeas in the very back
of the garden on the Service Road may well have some second flushes of
bloom, and the Viburnums in Section “V” bear red, yellow, and
blue fruit on their many cultivars. Note especially the clusters of red
fruit on the largest of the genus, Viburnum sieboldii, the Wayfarer Tree.
The glowing clusters of the fruit of the Highbush Cranberries, Viburnum
opulus and Viburnum trilobum cultivars, shine in shades of apricot, coral,
and deep red.
Arboretum Monthly Highlights
can be found in the Visitor Center located at the Main Greenhouse.
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