Re: Seedy thoughts

As I remember, I. dicotoma is native to the Mongolian high deserts. They've survived easily in our zone 4b without special care as long as the ground freezes solid before too much snow.
 
In my experience, they do best in average soil where they receive some water but have good drainage. Wet feet leads quickly to rot and they aren't long lived (only a year or two) unless divided frequently. Moving them every other year seems to be a nice compromise between their needs and my schedule.
 
I've found that they also do best planted closely so the tall stems can help support each other, otherwise staking them works well.
 
Christy

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