Here is a recipe for an Incense that wil help summon tree nymphs (like the Greek dyrads) and other water elementals that have a strong femenine quality (yin energy):
2 parts lilac
1 part sandalwood
1 part myrrh
Or : 2 lilac incense sticks + 1 sandalwood stick + 1 myrrh.
You can replace lilac with coconut as it is derived from a tree.