Annual flowers
Six pack biodegradable pots - 1.75 x 1.75 x 2 inches (Width x length x depth)
Or
Plastic - 3.5 x 3.5 x 3.5 inches
Vegetable plants
2.5 x 2.5 x 3.5 inches
Perennials
3.5 x 3.5 x 3.5 inches
or
3.5 x 3.5 x 4 inches
Or
4 x 4.25 x 5 inches