Is there a more fragrant dianthus plumarius than...
I want to plant the most fragrant dianthus that there is. I've read about the different types, and dianthus plumarius seemed like the most attractive species because of its hardiness and fragrance. I've also heard that even the foliage is fragrant for some of them! So anyway, tell me what cultivars you recommend from your own personal experiences, but they have to be hardy to zone 5. Also, does anybody here grow agastache? I've heard that agastache cana and agastache rupestris are extremely fragrant, and I've been looking for someone who will trade with me. Finally, are there any other hardy fragrant plants you recommend?