The term 'creepy plant' can be summarized by two crossword solutions: VINE (4 letters) and IVY (3 letters). Vines are plants that grow by clinging to a surface, such as a wall or tree. They can be found in many different climates, from tropical rainforests to temperate forests. IVY is a type of VINE that is often used as a decorative element in gardens and homes. It is known for its ability to climb walls and other surfaces, and it is also known for its evergreen leaves.