Agave Leaved Eryngium

Silverton, OR

I live in the Williamette Valley in Oregon. We have had a very dry summer for us and for the very first time I planted an Agave Leaved Eryngium. I have it in a very good spot according to all I have read but maybe did not water quite enough. It is beginning to turn brownish and drying out and I cannot find any information as to how to treat these for the fall and winter months. Do I cut the stock off and when do I do this. It did well this first year and is about 4-5 feet tall but could look better and next year (providing it comes back) I will be better informed as to water. Can use all the info I can get. I did not know I could post a photo, next time I will. Thanks
Sheila

Winchester, KY(Zone 6a)

According to plantfiles, sounds like it should be hardy there and require no winter care.

http://davesgarden.com/guides/pf/go/57260/

I'd never heard of this plant before, but it looks very similar to Eryngium yuccifolium, that I do grow, and I have a feeling their culture is similar.

http://davesgarden.com/guides/pf/go/783/

Mine tolerates dry conditions and clay soil like a trouper. It may be your plants nature to start browning at this time of year. I don't think they require much moisture, my Yucca leaved Eryngium are from seed, and the seedlings were planted last year when we had a terrible drought. They were also in the path of some backhoe work we had done last fall and had a bunch of heavy clay dumped on top of them. They survived it all like troupers, and even returned to bloom for me this year!

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