These seedlings are from ('Double Cutie' x citrina) X altissima, so it's not really a surprise that they're nearly all above waist high. This one seedling in particular is already over 5 feet tall and still looks like it's got a little more stretching to do before it blooms. I'm just under 6 feet tall and it's level with my shoulders at this point. Altissima routinely gets this tall here, but often flops around quite a bit. I'm hoping that the citrina influence will keep the stalks upright in this seedling. It's almost a certainty that it'll be lemon yellow like the two siblings that have opened flowers already.