eryngium picos blue

 How come Eryngium Picos blue is so difficult to find actually available?
i can get s varieties with Picos whatever but not actually this
one.Anyone know where it's actually in stock? It really is the bluest
I've ever seen and was stunning at Derry Watkins in the summer, but
again she had no seed or plants available

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Janet Tweedy
Dalmatian Telegraph
http://www.lancedal.demon.co.uk