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Silphium perfoliatum |
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| Common name |
cup plant |
| Family |
asteraceae |
| Life cycle |
perennial |
| Flowers |
yellow (summer) |
| Size |
6 ft |
| Light |
sun |
| Cultural notes |
ordinary garden soil |
From seed  |
self-seeds in our garden
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| Seed ripens | late August |
Bold upright plant with leaves arranged around the stems in such a way as to catch the rain. Yellow composite flowers in summer, starting in July.
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| | Bursting with buds in mid-July |
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We left this plant behind in our Pennsylvania garden (and wish it well); we don't grow it in Houston. Seed for this plant is included on my seed trade list One or more images of this plant are included in my stock photo catalog About my plant portraits
PlantLinks to other web pages about Silphium perfoliatum
Visitors to this page have left the following comments| Ed Landry | Jun 18, 2005 | Great pictures! I really love this plant. It attracts the attention of man, insects and birds. I've taken lots of pictures myself and I could email a couple of my favorites if you'd like. Ed Landry |
| Joe Heyer | Aug 22, 2010 | We have a beautiful 8 foot specimen of this plant in our garden in Malletts Bay, Vermont - Zone 4b - and I just saw another beauty in the Jardin Botanique in Montreal. This is the third week of August. It's absolutely trouble free. |
| Lynn Brazen | Dec 30, 2014 | Aldo Leopoldo talks about this plant in his environmental classic "A Sand County Almanac" published in 1949. |
| Raymond Coveney | Jul 31, 2022 | Cup or carpenter plant grows well in Kansas City, MO
July 2022 |
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