Not only is Taipei hiding in plants... He also is part bird and looks natural!
[Edit] decided to add the original story in, soooo, here you go-sorry it's kinda sad.
Taipei was originally abandoned in the flowers, his mother added the sign to make sure that he knew he was loved even before someone adopted him (or did other things). He died in that flowerbed since nobody ever went there, he died of starvation and of a broken heart because he missed his mother, the I love you sign was still with him.