hardiness

  1. Georgia Strait
    Thread

    Plant hardiness zones Canada / USA

    i notice that these forums have guests from both sides of the Cascadia border and beyond I am curious how the Agric Canada zones compare to USDA...
    Thread by: Georgia Strait, Oct 1, 2019, 16 replies, in forum: Plants: Science and Cultivation
  2. sgbotsford
    Thread

    Corkbark fir hardiness?

    I'm getting mixed information about Abies lasiocarpa var arizonica (Corkbark fir) hardiness, with citings of everything from zone 2 to zone 6....
    Thread by: sgbotsford, Nov 18, 2017, 2 replies, in forum: Gymnosperms (incl. Conifers)
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