French tarragon is indeed hardy and will comeback every year when established - I have a herb box full of it.

I can't see the point of planting rosemary in a herb wheel, it can grow too big and can do equally well in a pot or in the garden. I'd go for a mix of perennial, annual and bi-annual herbs, mixture of bought plants and seeds. I overwintered my parsley from last year and it's sprouting away well in the pots, just added some seeds round the exposed soil and they're sprouting also.

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TonyF, Dordogne 24220