South Florida rarely experiences cold temperatures, but cold snaps do occur. For instance, temperatures dropped to -2°F in 2009-2010. Since then, there’s been a move toward plants that are cold hardy. Bear in mind that even though many plants can tolerate lower temperatures, they may only be able to do so for a short period of time. That doesn’t mean they won’t sustain some damage below 30°F. Mulching will significantly help them survive. Bear in mind that “cold” is a relative term in your location.
The deciduous variety of the bush can easily withstand temperatures as low as -35°F.
The maximum low temperature a bougainvillea can survive is 40°F.
Most are hardy to temperatures of 0° to 10°F
A deciduous tree, it’s able to withstand temperatures of -15°F without being mulched.
Some magnolia varieties can survive temperatures of 20°F to -10°F.
Perennial Morning Glory
They can sometimes survive a frost, depending on where they’re planted. Otherwise, they’re typically rated for maximum cold temps of 45°F.
Also known as lead wort, it can sustain temps of -20°F. An added bonus is that it typically blooms during autumn months.
Red Fountain Grass
The lowest minimum temperature that the grass is able to tolerate is 20°F
Masters of cold temperatures, the shrubs can easily survive temperatures of -35°F.
Also known as wild petunia, leaves will typically die back to the ground when temperatures drop into the 20s.
Depending on the species, sycamores can survive temps up to -30°F
Variegated Asiatic Jasmine
They’ve been known to survive temperatures of 0°F, but will die in temperatures lower than that.
Palms and Evergreens
There are a great number of palms that will survive colder temperatures than you might think. The same is true of evergreens. When purchasing plants, pay attention to the tags inserted in the pots. They’ll provide the information you need to know before buying a plant that’s destined to die if the weather turns frigid.
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