First of my Den. speciosums to bloom... Den. speciosum var. grandiflorum. Canes on this plant are about 3 ft (1 m) long, and 2.5-3 inches (6-7.5 cm) in diameter. Not a windowsill orchid... It's quite top-heavy... I have it tied to one of the vertical supports of the shade area to keep it from going over.