We really like this drink, and Ruth found that she can buy the dried flowers at Bulk Barn here in Canada.
You can actually make this drink from either the dried hibiscus flowers or dried rosehips. In fact, the stuff at Bulk Barn is actually called rosehip jamaica.
I find that it tastes exactly the same, however some report that the rosehip variety is slightly sweeter.
An example of dried hibiscus flowers that you can buy in Mexico.
I had never tried this drink prior to our travels in Mexico. But it's so popular there, probably because it's so refreshing in hot weather, and because it's also very cheap. And it's available almost everywhere. Down there, it's called agua de jamaica.
Because there is added sugar, we sometimes find that they make it too sweet. But when Ruth makes it, she has experimented enough that she's got it down to exactly the way we like it.
If you've never tried it, you really should. Here's Ruth's recipe...
8 cups water
2 cups (3 ounces) dried hibiscus/jamaica flowers
1 1/2 cups sugar, or to taste
2 tablespoons fresh lime juice
In a 6- or 8-quart saucepan, bring water to a boil. Add flowers, stir and simmer over medium heat for 10 to 12 minutes. Turn off the heat and let the mixture cool a bit.
Strain mixture into a large container (with a lid to cover later), and add the sugar and lime juice. Stir until well-dissolved.
Once the concentrate has cooled, cover well and refrigerate. It will keep in the refrigerator for months. Note that this is a concentrate. You need to dilute it with cold water in order to drink it!
Dilute each cup of the concentrate with 2 to 3 of cups water depending on how strong you like it. Serve over ice cubes, or refrigerate until very cold.
I just checked, and of course you can buy various sizes and varieties of dried jamaica on Amazon...
This one looks like the best size and value for money... Dried Hibiscus (Jamaica) Flowers-8oz