Re: blue Java, Ice Cream hardy to zone 7b?
I've had the opposite experience as Randy. Back in 2005 and 2006 when I was growing Ice Cream, I dug the plants in the fall and stored them bareroot in the garage for the winter. They came through without any rot or problems for me. The garage stayed above freezing, probably in the 40s. I planted them back outside in the spring in 2006, and they started growing where they left off. I didn't think Ice Cream was hard to overwinter. Maybe I got lucky that year.
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Austin
Arkansas River Valley

Average January Low: 31°F, Average August High: 92°F
Extreme Winter Lows: 5-15°F, Extreme Summer Highs: 100-112°F, Annual Precipitation: 52 inches
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