Unfortunately I never heard back from the grower, so I'll never know what this supposedly Delrosi really is. I'm not too happy with that vendor anymore.....
They used to be top class, with huge healthy plants for a decent price, and excellent/prompt customer service. But I think the success of their business went to their heads and they scaled up massively in the last couple years, and quality has likewise changed massively, but not in a good way. Before I stopped shopping there, my last couple orders were disappointing. Scrawny and unhealthy plants and some even arrived rootless. Vendor's response? "Don't worry, if you take care of it well it'll grow new roots". Yeah, well I didn't pay to get half dead plants, even if they do recover!