The giant is just that, much bigger all over. We use a few every year in our fair exhibit, and they always make a big splash. The reason we limit the number is because if it gets too hot and humid and they are planted too close together, every plant may turn gray with mold overnight and require replacing. Al

Thanks calistoga, that's what I needed to know.

It does get hot and humid here too, so I won't plant them close together. I'm very curious to see how them grow, and how they compare to the Rainbow Mix that I've grown for years.