20 degrees Fahrenheit Click to see full answer. Regarding this, what is the lowest temperature a palm tree can survive?Hardiness. In general, hardy palms can only tolerate brief periods with temperatures in the range −18 to −12 °C (0 to 10 °F). As such, this generally limits hardy palm cultivation and long term specimens to zone 7a or higher.Also Know, why can’t palm trees grow in the cold? Cold tolerance is a pretty complex trait, and cold-tolerant plants have evolved a number of different mechanisms to deal with the cold. Maintaining membrane integrity (flexibility) is pretty important, and a high amount of desaturated fatty acids helps with this. Consequently, how do you cover a palm tree in cold weather? Cover the soil above the Palm trees with mulch to protect the roots from hard freezes. Wrap the center spear and the first three to six leaves with water pipe insulation. Be sure to fold the top over to make sure that no water gets inside the insulation.Can date palms survive a freeze?Pygmy date palms are known to survive brief temperatures to below 20 F and three nights at 17 F, although they were damaged. If you’re growing one outdoors in a container, you should bring it indoors when temperatures approach freezing.
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