Hey whilst you are busy trying to graft a rose plant that gets you stoned it might help if you placed a mirror right on the graft spot to insure the proper light.

Dont fail this endeavor simply cuz you didnt have enuff mirrors

Oh keep one thing in mind...

the HOST plant will pass any genome changes to the parasite...so if youre chopping a MJ stem and binding it to another tree, it will become like the tree.

Try a pine tree....they produce sap and resin and hold mirrors really well.

good luck!