A. Hirsh says the 2 proteas he could get to persist in our climate were: Lomatia myricoides and Grevillea rosmarinifolia. He gave the edge to the L.m. but they are pretty modest looking, especially because the flowers are white. So G. r. survived a few winters for me but eventually died, I can't remember why though it never looked very good after a winter so winter death is the obvious factor. But I don't think he tried G. v. or G. j. s., both of which are slightly hardier than G. r. right? Actually I found a picture of G. juniperina where it's looking pretty spectacular for a "that hardy" protea so I hope the plant you sold me does well. It's on my west facing stone wall a few inches from the stone so it should get winter protection from that. A lot of it will probably come down to what kind of winter we get next time. I don't think I will get lucky enough to repeat my low of 13.4F last winter. I'm right on the 6/7 border so right around 0F is probably more realistic as an average, if we stop having the nice streak of mild winters we've had.
BTW I spotted some proteoid roots on that plant. They are a little freaky looking, have you noticed them too?
I've decided after this year I (probably) won't have the patience to grow things from seed any more. My seed orders did really poorly this year, but I have to mostly blame myself. I think by trying to use the flats with really really tiny cells, the seeds ended up drowning. Funnily the only things that germinated well was some Mutisia which will probably most hate the climate here, compared to anything else I ordered, still I'm about to plant them out because they are growing too fast and trying to wrap themselves around the fluorescent light tubes!
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