oooooh -- nutmeg is good....
Other things :
Rosemary - symbol of remembrance and fidelity
Violets - Hope and faithfulness
http://www.gardencards.biz/html/flowermeanings.htm
this dictionary might give you more ideas...
You could also enclose on a small piece of paper, the words I love you, I care, you're special -- whatever you're feeling in Hindu or Japanese characters (the charaters are pretty cool), or write it in a language that's meaningful to you and her.