PARIS — “Growing and Using Lavender” by horticultural historian Betsey-Ann Golon is the subject of the fifth presentation in this year’s McLaughlin Garden and Homestead lecture series. The talk will begin at 4 p.m. Wednesday, March 19. The public is invited for tea prior to the lecture.

Golon of Common Folk Farm in Naples is the herbalist at the Shaker Village in New Gloucester. She also is an adviser to George Washington’s Mt. Vernon. Golon has a national presence and was a vendor at both the Philadelphia and Boston Flower Shows, as well as locally at Fryeburg Fair, among other places. The McLaughlin Gift Shop has recently begun to stock some of her items. Last week she gave a demonstration on “Lavender, Queen of the Garden,” at the Boston Flower Show.

The lecture is open to the public. No prior reservations are needed. Donations will be accepted to further the maintenance of Bernard McLaughlin’s historic garden and the property’s buildings. The presentation will be held at the garden’s newest acquisition, 103 Main St., next door to the garden. The gift shop in the historic Tribou house will offer 10 percent discounts for people attending the lectures.