Alder- The Fae of the Alder have been known as the " dark Faeries". They are very protective. When they leave their trees this Faerie will take the form of a Raven

Apple- This also known as the home for Unicorns.

Birch- This is sometimes known as the" Lady of the Woods" .

Elder- The Elder tree is sacred to the Druid clans. It is the tree of the beginning and the end.

Oak- Linking with the Oak Faeries awakens visions of your future.

Willow- It is associated with Brigid in the Celtic tradition; It opens vision and communicationThere are many well known ways to see Faery Folk. One is simply to
gaze through the opening of a holey stone or
self-bored stone. These are usually found near running water or by
the sea. They are often seen within a natural ring of
mushrooms at sunset or full moonlight. When seeking nature spirits
never wear, or carry iron, whistle, or ring bells in the
woods.

Trees:

There are many trees which are sacred to the Faery. The elder is
said
to offer protection for the Faeries from evil night
spirits, and it will work for mortals as well. Try looking in oak
groves for "Faery Folks are in old oaks". Acorns can be made
into Faery talismans when found by the light of the full moon.  The
adler is also connected to the Faery, as Robert Graves
states in "The White Goddess":

"The Adler was, and is, celebrated for yielding fine dyes:  green
from the flowers and brown from the twigs and red from
the berries: typifying fire, water and earth. One reason for the
adlers sanctity is that when it is felled the wood, at first white,
seems to bleed crimson as though it were a man. (or dryad or Faery
tree spirit!) The green dye is associated in British
folklore with the fairies clothes; so in so far as the fairies may
be
regarded as survivals of early tribes, forced to take to the hills
and woods, the green of the clothes is explained as protective
coloring; foresters and outlaws also adopted it in
mediaval times. Its use seems to be very ancient."

Roses:

The scent of roses is a powerful attracting force to the Faery.
Wear rose oil when seeking the Fae Folk. A rose water
preparation can be made to bathe in before doing any rite of the
Faery Wicca Tradition. It is traditionally made by taking
21 measures of rose petals and steeping them in a copper kettle with
a lid. They should be left to soak for the space of
full moon to full moon. This rose water can be used to scent the
body and hair and as "holy water" in works of Faery Magik.
 

 metals and fairies

If venturing into the world of Faery Magick,, ensure that all of your tools are made of copper, silver or woods that are sacred to Faerie. Oak is probably the best to use. If gem stones are to be used, the most appropriate are Faerie stones (staurorite), Quartz Crystal, Rose Quartz, Moonstone, Celestite (blue quartz), Selenite, Amethyst, Labradorite, and Amber. To guard against mischievious spirits, it is best to use flint. (source unknown)
Fairies are said in general to have an aversion to iron or even to  be harmed by it's touch . This is not true of all fae though and among the Fairy traditions of Asia there are tales of Iron working fae.
 

 Deva crystals are quartz crystals with lots of "fairy frost" that is, inclusions of  white fillaments and frosty effects. Holding one of these while you meditate will facillitate contact with the fairy and Devic realms. This kind of crystal is very common

FAIRY INDEX