I bought this plant (a bulb with a few wrinkle leaf) a few weeks ago by impulse and now feeling like I had bought an Oscar for my tetra tank: In just a few weeks, the bulb sprouts about 6 more leaf that are 2 feet long, go up to the surface then curve down to touch the gravel (I have it right under the HOB filter. Tank is 46 gal bow front, with 96W CF). The leaf are about 2.5 to 3 inch width too!
A beautiful, majestic plant but too big, even for my 46 and 55 gal tanks...
BTW, after all of these grow, the bulb still does not show any long root that would attach to the gravel.