Planting Design

Planting Design

Online Landscape Design Class
a garden bed with low dark foliage and pink flowers, mid-height orange-red foliage, and tall green large-leaf plants

Dates & Prices

October 3–November 14, 2024

Fee: $259 

Fee for Innovators, Gardens Preferred, and Gardens Premium Members: $233

Registrations may be cancelled up to two weeks before the event, and your registration fee, less a $30 processing fee, will be refunded. Please note that refunds are not available for programs moved to scheduled inclement weather dates.

To notify us of your cancellation, email us or call 610-388-5454.

Register by September 22, 2024

Innovators, Gardens Preferred, and Gardens Premium Members save on Continuing Education Courses

A 10% discount on classes will be applied automatically at the time of checkout. 

They must take into consideration site characteristics and challenges, as well as plant combinations for year-round interest. Using elements from Landscape Design I, create beautiful planting designs with balance, repetition, and cohesiveness. Gain exposure to different garden situations, such as the sunny perennial border or woodland garden, while considering important ecological aspects. Insightful discussion of traditional plant combinations for both formal and informal styles is paired with examples of effective planting designs used at Longwood and other gardens. This practical course allows you to develop a planting plan based on realistic situations and to clearly communicate the desired effect and design intent.

Certificate Information

Core course for Certificate of Merit in Landscape Design


  • Introduction to Graphic Communications
  • Landscape Design 1
  • Landscape Design 2

Course Schedule

Thursdays, 6:00–9:00 pm
October 3, 10, 17, 24, 31 and
November 7 and 14

Each weekly session will be recorded, and you will have access to the recordings and other online resources for six months following the end of the class.


Online via Zoom


Zach Hammaker

Zach Hammaker is the owner and principal landscape designer of ZH Design. He completed his education at Penn State University earning a Bachelor of Science in landscape contracting with a design/build concentration, and a minor in horticulture.  After graduation, he moved to the Delaware Valley to work with Terrain at Styers before starting his own business in 2012 in Media, PA. Hammaker is the past president of the Association of Professional Landscape Designers, PA-DE chapter. He has recently completed a dual master’s degree at the University of Pennsylvania in landscape architecture and city planning. He currently works as a senior instructor in the University of Delaware's Landscape Architecture program and design principal for the Coastal Resilience Design Studio.