Ophelia's Crown

Origin
The crown was found at the Duchess of Blossom's resting place.

Effects
The crown itself grants the wearer the ability to speak to plants and plant creatures. It can strengthen all magic related to plants (such as Seelie magic).

Ophelia's bearer, while also wearing Ophelia's crown, is able to wield the Duchess regardless of fighting prowess when in Fae or the lands tied to it such as Chimeron.

Source
http://library.cityofivory.org/534/Ophelia-s-Crown