Information from the Jepson Horticultural Database for Geum macrophyllum
Given no specific additional requirements, grows especially well in zones 4, 5, and 6.
Given moderate summer watering, grows especially well in zones 7, 15, 16, and 17
and also in zones 1 and 2.
Given full or part shade (morning and winter sun may be tolerated) and moderate summer watering, grows especially well in zones 14, 18, 19, 20, 21, 22, 23, and 24
and also in zone 3.
Invasive; once established, tending to outcompete, displace, or overrun others.
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