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Green School Colorado Gardening Courses from CSU Extension

Lesson Descriptions

Soils & Amendments

80% of plant problems can be attributed to soil issues, and good soil is the foundation to a great garden. Learn about soil structure, texture, tilth, fertilizers, soil amendments, and everything you need to know to create a great garden from the ground up.

Botany: How Plants Grow

Understanding basic plant physiology is foundational to growing and caring for your landscape. This course covers the basics of how plants grow and applying this as a Colorado gardener.

Tree Identification, Planting, and Care (2 weeks)

Trees play an incredibly valuable role in our landscapes, but are often improperly planted leading to premature health issues and even death. These classes will cover appropriate species selection for your site, proper planting techniques and post-planting care to help ensure their survival.

Lawn Care / Turfgrass Management

Learn the best, science-based practices for having the best lawn on the block. This class covers various grass species, general care (mowing, watering, fertilizing, aeration), irrigation, turf health and common issues/diseases, and managing weeds in the lawn.

Integrated Pest Management & Plant Diagnosis

There are many pests and diseases that can affect plants and being familiar with the plant diagnostic process is an important skill for anyone working with landscape plants. Integrated pest management (IPM) is an multi-prong approach to pest management and an important part of the diagnostic and treatment process.

Weed Management

Weeds tend to be a gardener’s biggest headache. This class covers the principles of weed management, weed life cycles, ID of some common weeds, how weeds can indicate cultural issues in the garden, and noxious vs landscape weeds.

Entomology (2 weeks)

Insects are the most abundant and diverse form of life found on earth. Being able to identify them and understand the role they play in landscapes (beneficial vs. detrimental), is one key to successful gardening. This class covers the basics of insect identification, insect anatomy and growth, and goes over the more common orders of insects that gardeners might encounter.

Plant Pathology

Learn to use the plant diagnostic pyramid and process to troubleshoot, identify and appropriately manage common plant diseases – both biotic and abiotic. This class is taught by a CSU plant pathologist so you’ll have the latest and greatest information.

Colorado Gardening Challenges

This class will cover how to deal with the many challenges to the Colorado gardener – everything from temperature whiplashes, low humidity, drying winds, critters, fires, water rights, and more. Native plants will be discussed as a solution to many gardening challenges, including benefits, misconceptions, and using them in the landscape.

Vegetables

Vegetable gardening can be a fun and rewarding endeavor, and this class covers all of the basics of how to do it successfully. In this class, learn about garden layout, planting times, soil preparation, pests and disease of vegetables, routine garden care and season extension.

Fruit Trees

Fruit trees are a great addition to a landscape and grow well in Colorado, but have different care and maintenance requirements than other landscape plants. Here you will learn about planting considerations along with training and annual pruning techniques specific to fruit trees.

Small Fruits

There are many delicious small fruits that grow well in Colorado including raspberries, blackberries, strawberries and grapes. In this class you will learn about soil preparation, training and pruning techniques and appropriate varieties that grow well here.

Pruning

Proper pruning is an important part of tree care and routine maintenance. It reduces pest and disease issues and helps keep trees from becoming hazards. In this class you will learn proper pruning techniques and the various reasons why pruning is a critical part of tree care.

Irrigation

Water is a big issue in Colorado landscapes- this class will cover water rights to how water moves through home landscapes, irrigation equipment, watering frequency and amount, evapotranspiration, watering efficiently and how to conduct home lawn check ups (and more).