Pot Color and Plant Growth
Does a pot’s color influence plant growth, root growth and quality attributes?
It sure does. As the image above demonstrates, there are significant visual differences in the amount of roots present in the different types of containers (black blow molded on the left, white injection molded in the center and co-extruded with darkened interior on the right) with the Hosta Empress Wu.
A portion of my presentation was spent discussing research I performed to determine if the type of branded container influences plant growth and quality. Proven Winners offers two types of branded containers: a white injection molded container (Royale) and a co-extruded thermoform container, which is white on the outside and gray or black on the interior.
The trials were set up using both containers in side-by-side comparisons using a number of plant species (annuals, perennials, shrubs and ornamental grasses). Marketability ratings were assigned based on the appearance of the top growth and root ratings were assigned to demonstrate differences in root growth.Does a pot’s color influence plant growth, root growth and quality attributes?