Amy Stewart, author of best-seller Wicked Plants, Flower Confidential, and recently published The Drunken Botanist, will hold forth at lovely Longue Vue House and Gardens this evening. Go into the garden with Stewart for a cocktail tasting and presentation, then stick around for a book signing. 7 Bamboo Road. $45. Register by calling (504) 293-4726, or visit longuevue.com.