Here in 8b, I would recommend Bambusa textilis. Yes, it is a clumper, and it may be up to 5 years before you can get decent visual screen, but I have gotten a nice screen in as little as 3 years with textilis. It is one of the most, if not 'the' most cold hardy of the Bambusas and makes an impenetrable clump once mature. It grows to 44' here. I wish I would have planted textilis along my whole back(north) fence as a visual and Winter wind barrier. It may take a lot of plants to cover the distance that you need, but I think it is best since you will never have to worry about it getting out of control, which I had with the Phyllostachys runners. The runners really like Texas once they are established. I can get a few dozen divisions from a mature textilis each year, so if you buy only a few plants, you can later take divisions to fill in between the other plants. I never purchased from Lewis Bamboo so I have no comment on their plants or services. Kt

To seal it. It keeps the plant from loosing moisture and nutrients from the cut and also keeps fungus and insects from attacking it at the wound. Its a living thing. Just like if you got a cut you would put something over it.

@Nikkiee Cruz What an adorable pup! We're glad to hear you are happy with your floors! :) We run a contest every month called "Project of the Month" we would love to have you submit your photos! All you have to do is send us 4 or more sharp photos to photos@calibamboo.com. 1st Place wins a $250 Amazon gift card, 2nd Place wins a $100 gift card, and 3rd Place wins a $50 gift card. It's fun on our Facebook Page, feel free to check out our current contest going on right now :) https://www.facebook.com/CaliBamboo/posts/10158529467952326

Someone on the name that plant forum I'd it as P. aureosulcata.