No muss, no fuss, no trouble! We have long experimented with this heat-loving, deer-resistant, clumping bamboo and still find it strangely underused in southeastern gardens. Bambusa multiplex 'Riviereorum' is a 10' clumper that dies back to the ground at 8 degrees F, but returns late the next summer when the heat builds. In colder climates, Bambusa multiplex 'Riviereorum' can be grown as an ornamental grass and cut to the ground in early spring. When winter temperatures stay above 15 degrees F, the stems will remain green and the leaves evergreen.