Tickets go on sale April 26 at 9 a.m. for an appearance by lifestyle expert, garden guru, and author Martha Stewart at Longwood Gardens. She and Kevin Sharkey, executive vice president and executive director of design for the Martha Stewart Brand, will share expert flower growing, gathering, and arranging insights from the newly released Martha’s Flowers: A Practical Guide to Growing, Gathering, and Enjoying, on June 14 at 10 a.m. in the Open Air Theatre.

Martha’s Flowers is her 90th book and her first dedicated solely to the subject.

Tickets are $75 (includes lecture, copy of Martha’s Flowers, and book signing); $45 (includes lecture and copy of Martha’s Flowers). Tickets include all-day Gardens admission. Visit www.longwoodgardens.org for more information.