"What does he mean; the 8" or the 30"?" you'll say. I'm sorry but that pesky little plant keeps on getting bigger by the year. According to literature only growing 8-18", it did start blooming at 8" tall, rather "cute" looking. 4 years later it was 30"tall and the otherwise small flowers were quite substantial. Did I mention the leaves? Gorgeous clean-lush-green, composed of 5-11 leaflets, becoming bigger by the year as well. Easy in a well drained soil, tolerates more sun than others. 3-4 year old corms in 5.5" deep pots.