We have many, many borage plants not only flowering, but new ones popping up all the time. They really self seed everywhere but the seedings are easy to pull up to limit their numbers.
Just wish they weren't so uncomforatble to brush past or pick from. Despite using washing up rubber gloves to crumble the dried leaves, they still pricked me.
I have just discovered on my herbal tea making journey, that the smaller younger leaves and flowers can be used, with some caution as they contain pyrrolizidine alkaloids. Read up on them if you are worried.
However, as I only steep mine for 10 minutes and intend to only use once or twice a week, I think I should be okay. The flowers are gorgeous and useful in salads. Some countries eat them cooked in meals:
I was thoroughly amazed by the taste, very fresh and cucumber like. I have only used them fresh so far so will try some dried to see if the flavour is different.
UPDATE; Nowhere near so nice dried, more grassy than cucumber so will only use fresh as a treat!