Miscanthus giganteus is definitely impressive, but yeah… it’s not quite as magical as it sounds on paper.
The yield part is real - it can put out a ton of biomass once established, and it doesn’t need heavy inputs every year. But the ‘grows on marginal land with no downsides’ angle is a bit oversold. It still needs decent moisture to really perform, especially in the first couple of years while it’s establishing.
For bedding and mulch, it’s actually a solid use. The absorbency claim isn’t totally crazy -the pithy core does help. A lot of people in Europe use it for animal bedding with good results.
Where I’d be more cautious is firebreaks - dry miscanthus is basically tinder. Green, irrigated stands might resist ignition somewhat, but once it cures out, it can carry fire pretty fast. I wouldn’t rely on it as a primary firebreak without serious management.
Also worth noting: establishment can be slow and not cheap (rhizomes), and it doesn’t spread aggressively because it’s sterile, so you’re planting everything intentionally.
For southern BC specifically it can grow there, but performance will depend a lot on your rainfall/irrigation. In drier areas, it won’t hit those “giant biomass” expectations without water.
Overall though, as a multi-use biomass crop? Yeah, it’s legit - just not quite the miracle plant some articles make it out to be.