|Dwarf Buddha Belly leaves are beginning to die after being nipped by last week's freezing temperatures|
Many people are worried about their bamboos. People have been calling to ask what they should do to protect their bamboos during tonight's expected freeze. Fortunately, most of the bamboos are going to be fine even if they are not protected at all. All the running bamboos and most of the clumping bamboos can handle chilly weather - even when it dips into the mid to high 20s. Certain ones are vulnerable but even those will rebound when the weather warms back up. It is important to remember that even if the cold weather kills the above ground portions of the plant, it won't kill the roots. The roots will remain viable and will send up new shoots again in the summer.
Here's a list of which plants are vulnerable: all the Textilis bamboos like Emerald and Graceful are extremely hardy and won't be damaged unless temperatures dip into the mid to low teens. That's also true for all the Multiplex bamboos like Golden Hedge, Green Hedge and Golden Goddess and also for Buddha Belly (Bambusa ventricosa). Almost as hardy are Blue Timber, Baby Blue, Seabreeze and Yin Yang - those bamboos might suffer some leaf damage when temperatures dip into the low 20s.
The ones to be concerned about in the current freeze are Dwarf Buddha, Hawaiian Gold, Angel Mist and Black bamboo. To a slightly lesser degree, Ladyfinger, Asian Lemon, Giant Timber and Sunburst are also vulnerable.