This fall, Tower Hill Botanic Garden is offering the public an opportunity to hear from a wide range of authors who are experts in their nature-related fields. Visitors can learn about topics ranging from the importance of savings heirloom apple varieties to how to design a therapeutic gardens as Tower Hill, a nonprofit based in Boylston, seeks to educate and inspire the public about the importance of plants in people’s lives. Each lecture, discussion, and book signing is included in the regular cost of admission to Tower Hill through the end of October.The series kicks off the last weekend in September with a lecture on the successful effort to reintroduce the bald eagle to New England by Dianne Benson Davis, author of “Eagle One,” at 1 p.m. on Saturday, Sept. 26. Lee Buttala, author of “The Seed Garden: The Art and Practice of Seed Saving,” gives a talk and book signing at 1 p.m. on Sunday, Sept. 27.

The first weekend of October features a talk and book signing with Amy Wagenfeld, the co-author of “Therapeutic Gardens: Design for Healing Spaces,” at 10 a.m. on Saturday, Oct. 3. Wagenfeld will discuss why being in nature can support health and well-being, and how healing gardens can be designed to benefit everyone. At 1 p.m. on Saturday, Oct. 3, John Bunker, one of the foremost authorities on New England’s heirloom apples, will discuss the history of apples in Massachusetts dating back hundreds of years, including many growing in Tower Hill’s historic orchard.

On Columbus Day weekend, Dan Bussey, author of “The Illustrated History of the Apple in North America,“ the largest work on apples of its kind ever published, will speak on saving the heirloom orchard. Bussey’s Saturday, Oct. 10, at 2 p.m. lecture will include strategies on keeping some of the oldest varieties of apples thriving for future generations. Kathryn Aalto, author of “The Natural World of Winnie-the-Pooh: A Walk Through the Forest that Inspired the Hundred Acre Wood,” will give lecture and book signing at 1 p.m. on Monday, Oct. 12. Aalto offers a new understanding of how the Winnie-the-Pooh books are now, more than ever, field guides for the free range child, a hymn to those days of doing nothing – yet learning everything.

The lecture series wraps up at 7 p.m. on Wednesday, Oct. 21, with Annette Giesecke’s talk and book signing on “The Mythology of Plants.” Visitors will learn about a selection of ancient Roman gardens and hear about the tales of lust, blood, and vengeance behind common garden plants such as narcissus and hyacinth, pomegranate and apple, which still grace our orchards and landscapes, and exotica such as frankincense and myrrh.

For more information about these events and others being offered this fall, please call 508-869-6111 or visit towerhillbg.org. Tower Hill Botanic Garden is located at 11 French Drive in Boylston, Mass., just outside Worcester and is about an hour’s drive from Boston, Nashua, Springfield, Providence, and Hartford.