Neutron Star Nut

This plant is among the most defensive plants there is. It absorbs 2000 normal damage bites or 500 Zombie Instant Kills. It is acquired after defeating Sol. The reasoning for this is that when stars of much greater mass than our sun die, they leave a Neutron Star, a very dense object. They might also leave Pulsars or Magnetars, and if they are large enough, black holes.