That's what every website and plant tag should say. Seriously. My lord. You buy a plant, and most people just do what the tag says. My thinking is that's not smart. You don't spend on average of $15 and just follow the tag. You Google it. Everybody should Google (sicko).
Of course, then you find out that, oh, let's say, you're sedum album coral carpet is a zone 6, no wait, it's a zone 4. Then, well, it's green. No, not really, it's also coral red, but only when it gets cold. But then, wait, also when it gets hot. Or, no, when it gets too much water since sedum likes it bone dry 90% of the time. But wait, not just red when stressed, but red in poor soil, like my clay. Wait. Wait. Now it's red ALL the time even though my 36 little multi pack plants are green. WTF. Honestly.
This happens with almost everything I research, thinking that if I put the right plant in the right spot I'll have an improved chance of seeing it next April. Does anyone actually grow, engineer, monitor, or in any way OBSERVE over several seasons and with multiple variables what these plants do? Are there ANY standards? "Geeze, look, a new cultivar. Get it out to all the nurseries ASAP and make it cost a few bucks more. What? I don't know how it best grows. Here. Use my wheel of horticulture I spent three years designing. Neat, huh? Lights up and makes noises, too." Sincerely some dork face in a greenhouse lab.