The Cape Cod Hydrangea Festival returns, celebrating the iconic plant that makes Cape Cod so stunning in July. See the expanded North American Hydrangea Test Garden, participate in workshops and book signings, purchase plants, and tour the garden, which includes over 150 spectacular species and cultivars. All programs are free with Museum admission. No advance registration required.
Hydrangea Basics Walk and Talk
Friday, July 7 – Sunday, July 16
Knowledgeable guides lead a walk through The North American Hydrangea Test Garden’s historic cultivars and reblooming modern varieties, discussing species characteristics and best practices for how to select, plant, and care for your hydrangeas.
Hydrangea Pruning Discussion
Monday, July 10: 1:30-2:15 pm
Sunday, July 16: 1:30-2:15 pm
Join the Heritage Horticulture staff to learn how to selectively prune your plants to improve vigor, increase bloom density, control height, and enhance ornamental value. Discuss the tools, techniques, and timing needed for effective pruning, and watch a demonstration of pinch pruning.
Hydrangea Pests and Disease Control Walking Tour
Tuesday, July 11: 1:30-2:15 pm
Walk the gardens with Mal Condon, Heritage’s Hydrangea Curator, to learn about the pests and disease issues that most commonly affect hydrangeas. Learn how Heritage uses a more sustainable approach to control pest problems.
Saturday, July 8: 1:30-2:15 pm
Saturday, July 15: 1:30-2:15 pm
This is the current direction for future breeding of the species Hydrangea macrophylla. And why not? Who wouldn’t want to have a cold-hardy Hydrangea macrophylla that provides new blooms over the entire summer and even into the early fall. Mal Condon, Heritage’s Curator of Hydrangeas, will discuss several of these cultivars during a walk-through The North American Hydrangea Test Garden.
Sunday, July 9: 1:30-2:15 pm
Friday, July 14: 1:30-2:15 pm
Mal Condon, Heritage’s Curator of Hydrangeas, will share the details of plant propagation techniques developed specifically for the home garden. While hydrangeas will be the main focus of this demonstration, these practices can be applied to many other woody ornamental genera. Propagation is a pleasurable pursuit and a most enjoyable way of producing more plants.
Hydrangea Fertilization and Bloom Color Control
Wednesday, July 12: 1:30-2:15 pm
Hydrangeas require very modest amounts of fertilizer but only the right NPK ratios should be used. Bloom color is controllable to a great extent in the species Hydrangea macrophylla if done correctly. Mal Condon, Heritage’s Curator of Hydrangeas, will share his expertise on the critical factors associated with these two important cultural subjects.
Heavenly Hydrangeas Book Signing with author Joan Harrison
Thursday July 13: 1:30-2:30 pm
Learn tips and tricks for growing beautiful hydrangeas from author Joan Harrison during this one-hour walking tour, with a book sale and signing featuring Joan and her popular book, Heavenly Hydrangeas. Joan was the founding president of the Cape Cod Hydrangea Society.