Hi Liz, Boraqe is an annual herb and the plant will not go through from one year to the next. Best thing to do is leave it to set seed and it will self seed itself around your garden. I always leave the plants in the ground till all the seed on the plant has blown away and then pull the plant up from the ground. I always leave mine until at least October but this depends on the weather and the plant. As you say the bees absolutely love this so it is a good plant to have in your garden.
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