I'm making plans on where to plant which varieties in my raised bed. I am just wondering the size variations of each variety and/or species, so I can wise decisions on which plants to put in front of others, lest some of my plants get shaded out by others. Basically what I'm asking, do plants vary in size by variety, or is it more just by species? I have several chinense plants, but also some annuums and baccatums. What can I expect for size variations between species and varieties?