Alderbrook Learning Garden began as a place to demonstrate using organic gardening techniques to grow vegetables, herbs, and fruit in our challenging coastal climate. It is visible and accessible. It is on Highway 30 in Alderbrook Park in Astoria. It is a place to educate adults and youth sustainable and varied gardening practices in a small space. It has raised beds and a fence for vertical gardening. There is also an established pollinator garden which includes many native plants and a compost area to create compost and for educational purposes.

As with most things, 2020 brought challenges and changes to the garden but it remains a vital part of CCMGA. We have produced several thousands of pounds of produce since the garden's inception in 2018, which besides providing the grounds for our educational efforts, have also been donated to the Clatsop Community Action Food Pantry in Warrenton. 

In late 2023, we entered into a partnership with North Coast Watershed Association to assist their efforts of propagating Early Blue Violets (Viola adunca). These plants are the host plant for the caterpillar of the endangered Oregon Silver Spot butterfly (Speyeria zerene hippolyta). We will be growing them for seed collection and testing different parameters in different beds to find out what methods yield the most seed production.