I think the potential for lab-grown construction materials is underrated. Bamboo in its natural form is kind of a challenge. As achow’s comment points out, it’s

I think the potential for lab-grown construction materials is underrated. Bamboo in its natural form is kind of a challenge. As achow’s comment points out, it’s hard to reconstitute into other forms that retain bamboo’s desirable properties. And it tends to rot easily unless encased in resin. A more interesting prospect for me is fast-growing wood / plant materials in a medium where we get the desired shape and structure grown, rather that cut and glued. Imagine giant barges at sea taking up nutrients from sea water, and growing thick straight grained timber. Or plywood, where each ply is only a few strands thick before changing orientation. Or chairs that lack joinery due to having been grown on a 3d scaffold. Growing our building materials this way would be comparable to replacing meat with plants in terms of ecology. Forests would be valuable for their ecological services rather their timber. It’s a world I’d love to live in.