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Inula Magnifica? Tall Rudbeckia?

comments (6) July 23rd, 2009 in gallery
busterchops busterchops, member
2 users recommend


This perrenial blossoms in July here in Zone 5 (Cleveland, OH). About six to eight feet tall, about sic to eigth feet wide (planted in 2007). Clusters of yellow flowers with small petals. Planted in good soil, good drainage. Large leaves. Any suggestions?



posted in: The Gallery

Comments (6)

LoriMI writes: Love the Cup plant! Mine is over 10 feet tall this year. Make a great statement in the back of the garden. Posted: 10:37 am on October 3rd
busterchops writes: Thanks to you all.
We now agree with the Sylphium perfoliatum designation. Wife and I were at a local Nature preserve and on the tour spotted a plant similar in height to our own with similar petals. The naturalist identified it as "cup and saucer" plant, sylphium perfoliatum. He pointed out the cup formed at the junction of the leaves and plant stalks.
So, mystery solved. Well done.
Thanks again! Posted: 8:32 am on September 7th
betsy2697 writes: I agree with patgerm. It is Silphium perfoliatum, a native prairie plant, found in the wild in Ohio. The "cup" formed by the base of the leaves is a diagnostic characteristic. Leaves are very coarse and feel like sandpaper, yes? See also wild Silphium prairie relatives, Prairie Dock and Compass Plant. Posted: 1:22 pm on August 18th
annierooney writes: fence post weed, as my dearly departed fatehr-in-law called plants he could'nt identify. Posted: 6:38 pm on August 15th
patgerm writes: It looks like Siliphium perfoliatum - cup and saucer plant. I have many growing in my native plant garden (Long Islaand , zone 6-7) and love them. Posted: 12:34 pm on July 31st
kevilicious writes: I think it looks like a Jerusalem artichoke (Helianthus tuberosus), here's a link you can check out.

http://en.wikipedia.org/wiki/Jerusalem_artichoke Posted: 4:20 pm on July 23rd
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