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#95750 Jul 23rd, 2007 at 11:59 AM
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Wrennie Offline OP
TweetyBird
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Penny in Ontario found this growing in her town and wants some for her yard. Anyone know what it is exactly? They were upwards of 5-6 feet tall.

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#95797 Jul 23rd, 2007 at 12:32 PM
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Purl One
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Hmmmmm - I was wondering if that is the same "false sunflower" that I just bought a few weeks ago - Heliopsis helianthoides - but the green "eye" in your flowers does not look the same. I'm just not sure - can you get a better close-up of the center of a mature flower?


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I see you all have been discussing the flower in the CH, and I looked up Jerusalem Artichoke - here's a great picture of what to look for to see it that is what it is - scroll down to the bottom picture where they show the underside of the flower!

Jerusalem Artichoke


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#95851 Jul 23rd, 2007 at 02:28 PM
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Number Seven
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It looks a lot like a plant that I have called Indian Cup or Silphium perfoliatum.

www.robsplants.com/plants/SilphPerfo.php


You know, upon second look it looks more like a Heliopsis, as mentioned before.


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#96265 Jul 24th, 2007 at 08:59 AM
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I've seen them growing behind our house too! I always thought they were jeruselam artichokes, never fdug up the roots to see if there were tubers


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When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant. Mary Ann LaPensee
#96500 Jul 24th, 2007 at 01:22 PM
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Number Seven
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If it is an Indian Cup, it is very easy to grow. It prefers full sun and moist, well draining soil. They get HUGE...I planted a small 1 gal. plant 4 years ago and now it's spread out at least 3 ft. and grows to 5-6 ft tall. They are great architectural plants. BTW, the others it could be -Heleopsis(False Sunflower), Helianthus (Jerusalem Artichoke and others), have similar growing requirements.


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I love the links people share!!! Checking them out saves me from cleaning the house ;)


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#96551 Jul 24th, 2007 at 03:41 PM
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Originally Posted by penny in ontario
Hmmmm....so there's another one who thinks that they are Jerusalem Artichokes...
I'm not sure I know enough to count lol

We have lots of flowers that look like behind our house. There is a guy who lives a few houses down who works for the town and plants natives and trees to help 'reforest' the area. I've seen lots of flowers that look like helianthus and the pics that Wrennie posted, and each plant seems to be different a bit (some are taller than me, I'm 6'1") and some are about 3 feet tall. Some have brown centers, some are black. Some have lobed leaves and some leaves are veined. I'm assuming most of these are about the same. I'll see if I can find the guy tomorrow and ask him.


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Helping the world one seed at a time

When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant. Mary Ann LaPensee

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