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Re Paulownia seed stuff .... here's a pic of the seed (Attachment Link) and this, from a blog from someone in the Fort McMurray area of Canada - where the dreadful fires have been - is a picture of seedlings .... (Attachment Link) and this site has handy pix of the stages of growth... http://dragontrees.com/
Puzzling why someone in Ft. McMurray would be growing Paulownia unless a climatically-challenged Atlantic Canadian working out there. I love Dirr's comment on this tree -see attached. Some inland trees this year lost all buds at temps above 0F, despite that it looks like other nearby trees will indeed flower this year and they are loaded with buds so expecting a spectacle. Winter of 2013/14 and 2014/15 we had a city low of -17c and var. coreana flowered fully, this year the low was -15 so we may see flowers on the straight species. Has a remarkable capacity to lift sidewalks and paving on our shallow soils. Great fun to grow.john
Isn't 0°f really, really cold?I'm going to try stooling a few to get the uber large leaves and plant one to grow without being messed with every spring.
Puzzling why someone in Ft. McMurray would be growing Paulownia unless a climatically-challenged Atlantic Canadian working out there. john
Rick - Do you get dependable snow cover that protects the roots or is it indeed that root hardy?john
Here in zone 4 Minnesota, USA, Paulownia usually freezes to the ground every winter. But it spectacularly rebounds from soil level. It's not uncommon to get multiple stems with big leaves reaching 10-15ft by the end of the season. I know for folks in more southerly climes that's not such a big deal (everything seems to grow bigger in half the time), but for us in the cold north, it's pretty magical.
Our summers are a whole lot warmer than yours, and I would guess that would play a big role in this question, too.