Answer:
I can be sweet or sour. I do not rhyme with any other word
I am a creature with a βtightβ name.
I have memories, but none of my own. Whatever's on my inside is what is shown. If I'm ever different, it's because you changed me. I feel like a decoration, here for you to arrange me. What am I?
I contain six letters minus one and you got twelve.
I am flora not fauna. I am foliage not trees. I am shrubbery not grass.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?