Luckily, rustica is the easiest tobacco plant to grow and cure. It was thought up until recently that Rustica was extinct, until the guys who started the American Spirit Tobacco Company found some and made the seed commercially available. It has big thick, almost prehistoric looking leaves, and cures easily by just hanging the leaves. You can now order the seeds from any seed bank that sells tobacco seeds. It is thought that this is a plant variety, from which all other tobaccos were derived. Side by side with Orinoco, or Ukrainian, they look very similar, but taste and strength, I have found nothing that rivals Rustica. It is pretty close to a hallucinogenic drug, smoked straight.
My suggestion to anyone growing it would be to use the bottom six sets of leaves and then chop the plant down and grow another crop next.
The only way I could smoke what I grew was to blend it down with a light bright leaf variety. It can easily be used in about the same way perique is blended, except in lighter doses.