150 (200)cm, Konjac Titan Arum is probably the easiest and one of the showiest species in this genus. It has an impressive dark purple red spathe of up to 80cm in height with a purplish-maroon spadix inside. This species is vey variable with regards to flower height and color. On a famous selling platform someone offers seeds at a ridiculously high price from a so-called "form" which should be "as spectacular as Amorphophallus titanum". This is simply nonsense, it is just the normal type with an abnormally formed flower in one year due to cultivation circumstances. Seedlings will be just the normal form. Amorphophallus konjac is probably the most readily available species throughout the world, so don't spend too much on such a "form", unless it is not a true cultivar with clearly distinct and - above all - permanent characteristics such as Amorphophallus konjac 'Pinto'! Amorphophallus konjac is easily grown in a sunny or partially shaded spot in any rich, well drained soil. During summer this robust species may be even grown in the open ground in the garden just like potatoes. And in Asia this species is indeed grown as a field crop for making several dishes (e.g. Konyaku Noodles). During dormancy in winter keep tubers dry at a minimum of some 15░C. Tubers sized 8cm ° and above are flowering size. USDA climate zone 9/10. IV-VI.