365 urban species. #274: Boston Ivy
Oct. 3rd, 2006 08:49 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)

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Urban species #274: Boston ivy Parthenocissus tricuspidata
There are many buildings in Boston (and across the river, Cambridge) that are ivy covered, some of them famously. For a while now I have suspected that much of it is not "true" ivy (Helix spp., to be dealt with in a future post) but some other plant. My main pieces of evidence included the fact that the Boston ivy's leaves change colors in fall, and drop before winter. True ivy is evergreen. Also, I read the assertion that true ivy (a European native) feeds no birds with its fruit. Boston ivy used to cover the building I live in, and I would watch mockingbirds perch on my windowsill and eat its blue berries. As I finally learned today, the Boston ivy is in fact, a plant called "Boston ivy."
It is a relative of grape and Virginia creeper, and also goes by the common name "Japanese creeper." This name may be more appropriate, since Boston ivy is actually native to Asia. The plant does have a genuine connection to my city, however, as one of the varieties discovered and cultivated at the Arnold Arboretum goes by the name "Fenway Park." Chicago's baseball park, Wrigley Field, also has Boston ivy growing on its walls. In fact, the main use of this plant is to cover masonry on large buildings like stadiums and schools, and in at least one case, a parking garage. I'll leave it to readers in New Haven, Providence, Ithaca, Hanover, Philadelphia, and Princeton to check to see if the rest of the League is covered by ivy, or Boston ivy.

Parking garage on Brookline Ave, Boston.

Abandoned building, Jamaica Plain.
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Philadelphia
Date: 2006-10-04 01:03 am (UTC)I've always heard that English Ivy (Hedera) flowers are very rich in nectar, a late food source for bees and other insects; and the fruit are small black berries ripening in late winter, and are food for many birds.
no subject
Date: 2006-10-04 01:24 am (UTC)no subject
Date: 2006-10-04 02:06 pm (UTC)no subject
Date: 2006-10-04 02:22 pm (UTC)I do very much love the look of Ivy and Boston Ivy; there's just something delightful about these plants coating buildings.
Ivy
Date: 2006-10-04 03:02 pm (UTC)of the large areas underneath the slightly protruding arches were covered with 30 foot high poison ivy vines, that had been reddened by cool nights and glistened beautifully from their color, the dew, and the rising sun, which shone directly on them.
Dwight
no subject
Date: 2006-10-04 03:28 pm (UTC)I would love to grow some kind of a creeper in our backyard, to cover up the fugly wall of the house nextdoor. However, it would have to be something that won't damage the grout, so suction-cups rather than tentacles, I think. Someone recommended a "Wingerd" (dutch name for parthenocissus, don't know the common English name), since the wall in question is east-facing and mostly shaded. Although, if I get my way with the @*(^#!@^$!! tree there, it will get a lot more sun soon.
no subject
Date: 2006-10-04 04:01 pm (UTC)Ivy check - Ithaca
Date: 2006-10-04 11:58 pm (UTC)no subject
Date: 2010-01-03 02:06 am (UTC)http://www.flickr.com/photos/cyborgsuzy/89109687/in/set-1807361/
no subject
Date: 2010-01-03 02:58 am (UTC)