Root Over Rock Bonsai

This class will take place online. Registered students will receive login instructions. Whether you are a budding arborist or weekend woodcutter, knowing how to use your chainsaw safely and maintain it properly are keys to success. This lecture-demonstration course by an ISA-certified arborist teaches you the basics of chainsaw use and care, sharpening,...

This class will take place online. Registered students will receive login instructions. Understand how the qualities of soil affect the overall productivity of plants and make sustainable gardening practices possible. Practical application of theory is stressed. Topics include soil formation, physical properties of soil, soil-water relationships,...

Soil is a dynamic, living organism and the very foundation of sustainable horticulture and agriculture. This course focuses on the texture, structure, density, and color of different soils and the dynamic relationship that exists among soil, water, and plants. Learn irrigation and drainage techniques and explore how soil, organic matter, and microbiology...

This class will take place online. Registered students will receive login instructions. Designed for students who want a user–friendly introduction to plant science, this course surveys the major groups of plants—flowering plants, conifers, ferns, and bryophytes—focusing on plant form and structure. Learn about the relationships between appearance...

Explore native tropical fauna, indigenous peoples, and how culture is tied to horticulture. Take a glimpse into the ancient Hawaiian way of life by touching on topics such as island biology, native agriculture systems, Hawaiian legends, and the importance of plants to the native Hawaiian’s culture.  This class will be taught online via Zoom....

Native woodland wildflowers are the first harbingers of spring. Learn specific identification characteristics, their fascinating natural history, and how they have evolved to rapidly grow, flower, and fruit. This class will be taught online via Zoom. All registrations must be submitted online two days before your class starts. Registered students...

Learning the correct technique for pruning is key to maintaining healthy plants. Tim Johnson will introduce you to the principles of pruning, including proper tool use, techniques for pruning trees and shrubs, and the best time to prune both evergreen and deciduous plants. He will also display a variety of good tools for pruning.

Growing and eating sprouts can present benefits to enhance your immune function and increase your body’s ability to heal. Learn how easy it can be to grow life-giving foods that heal, how to incorporate sprouts into your diet, and taste samples of the indoor harvest.

Join us for a discussion of orchid cultural requirements, focusing on the orchid root system and the importance of proper potting. Discover what makes a good potting mix, how to pot for different growing conditions and how to troubleshoot poor growth, a lack of flowers, and dying leaves. It’s all in the roots! A tour of the Orchid Show is includ...

Growing a garden can be healing in so many ways, whether you are replenished by the healing herbs you grow, the time spent outdoors, or the empowerment that comes with growing your own food. Join co-founder and CEO of the Urban Growers Collective and dig deep into the how’s and why’s of herbal gardens.