Is this a companion planting miracle? I've never had Brussels sprouts get this big here on Kodiak Island, Alaska. Could it be that they got a boost growing next to a trellis
Brussels Sprouts: Vermont Bean Seed Company
The Garden Clinic
How to Grow Brussels Sprout Plants | General Planting & Growing Tips – Bonnie Plants
Brussel Sprout Plant by Jon Stokes
Brussels sprouts - Gardening at USask - College of Agriculture and Bioresources | University of Saskatchewan
Do You Know How Brussels Sprouts Grow? | The Kitchn