Beginner Gardening: From seeds of a coleus flume........why so tall???, 5 by firecrackerjack

firecrackerjack wrote:
Hi and good Monday morning to one and all.....
Last year i had a coleus flume plant in a container...beautiful! I saved the myriad seeds and scattered then on the soil this year and you can see the result in the pics......(they don't resemble the flume from last year which had the yellow and pink etc)
The tallest one is up to my shoulders now and i put the sneaker there for size comparison (i take a size 9 sneaker lol)
My question is do coleus actually grow THAT tall?? Seems they do, but i didn't prune last year.......
The last pic in the container is the coleus flume from last year!
Any help gratefully received, thanks in advance Ray