Wand woods (pottermore.com)
A very unusual wand wood, which I have found creates tricky wands that often refuse to produce magic for any but their owner, and also withhold their best effects from all but those most gifted. This sensitivity renders them difficult to place, and I keep only a small stock for those witches or wizards of sufficient subtlety, for acacia is not suited to what is commonly known as 'bangs-and-smells' magic. When well-matched, an acacia wand matches any for power, though it is often underrated due to the peculiarity of its temperament.
Alder is an unyielding wood, yet I have discovered that its ideal owner is not stubborn or obstinate, but often helpful, considerate and most likeable. Whereas most wand woods seek similarity in the characters of those they will best serve, alder is unusual in that it seems to desire a nature that is, if not precisely opposite to its own, then certainly of a markedly different type. When an alder wand is happily placed, it becomes a magnificent, loyal helpmate. Of all wand types, alder is best suited to non-verbal spell work, whence comes its reputation for being suitable only for the most advanced witches and wizards.
Applewood wands are not made in great numbers. They are powerful and best suited to an owner of high aims and ideals, as this wood mixes poorly with Dark magic. It is said that the possessor of an apple wand will be well-loved and long-lived, and I have often noticed that customers of great personal charm find their perfect match in an applewood wand. An unusual ability to converse with other magical beings in their native tongues is often found among apple wand owners, who include the celebrated author of Merpeople: A Comprehensive Guide to Their Language and Customs, Dylan Marwood.
The ash wand cleaves to its one true master and ought not to be passed on or gifted from the original owner, because it will lose power and skill. This tendency is extreme if the core is of unicorn. Old superstitions regarding wands rarely bear close examination, but I find that the old rhyme regarding rowan, chestnut, ash and hazel wands (rowan gossips, chestnut drones, ash is stubborn, hazel moans) contains a small nugget of truth. Those witches and wizards best suited to ash wands are not, in my experience, lightly swayed from their beliefs or purposes. However, the brash or over-confident witch or wizard, who often insists on trying wands of this prestigious wood, will be disappointed by its effects. The ideal owner may be stubborn, and will certainly be courageous, but never crass or arrogant.
Wand-quality aspen wood is white and fine-grained, and highly prized by all wand-makers for its stylish resemblance to ivory and its usually outstanding charmwork. The proper owner of the aspen wand is often an accomplished duellist, or destined to be so, for the aspen wand is one of those particularly suited to martial magic. An infamous and secretive eighteenth-century duelling club, which called itself The Silver Spears, was reputed to admit only those who owned aspen wands. In my experience, aspen wand owners are generally strong-minded and determined, more likely than most to be attracted by quests and new orders; this is a wand for revolutionaries.
The true match for a beech wand will be, if young, wise beyond his or her years, and if full-grown, rich in understanding and experience. Beech wands perform very weakly for the narrow-minded and intolerant.