Hardy Palm and Subtropical Board
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Re: Anyone have success with Mules in 7b/8a?
Posted by Matthew Dallas TX on 4/10/2017, 2:47 pm, in reply to "Anyone have success with Mules in 7b/8a?"
I've grown a butiagrus in Dallas that began as a one gallon, strap leaf seedling from Tim Hopper in 2004. It had spear pull several times when it was small. The cold blast of 2011 proved to be a very near-death experience. The four day cold blast brought rain to ice, an ultimate 14* low, 40 mph winds and subfreezing temps for 96 hours. I wrapped the trunk with a painter's tarp, but the crown was exposed. The mule was completely burned as were many butia and chamaerops in town. I did not see regrowth in March and began trunk cutting in 4" increments until I found live tissue. After cutting down 18" of trunk I found a live middle tissue. It quickly grew out and had a full crown by the end of the season. This mule bloomed for the first time in 2013. From my experience, mules are not long term palms for z8. They were heavily damaged in 2011 all the way into San Antonio (z9). I've found the three way hybrid to be much more cold hardy- (Jubaea x Butia)x Syagrus. I have a large one that has sailed through quick dips to 17* w/o damage. IMHO- the Jubaea x Butia hybrid and (JxB)x S hybrids are the ultimate pinnate palms for z8.