I get the following crash report when I look at a placed Pitcher Plant:

http://www.codesend.com/view/1699a4f30504dfa6312e84f811999866/

Modpack:

http://www.technicpack.net/modpack/dragontechmc-19.825303

Hope this helps :)

• Alice/ yepidoodles
  Owner of DragonTechMC

EDIT: Using latest 1.9 version