have: have - oxypetalum caeruleum
Oxypetalum caeruleum is a gorgeous perennial from Brazil and Uruguay. All summer it has star-shaped icy-blue flowers. Related to milkweed, it's easy to grow from seed.
Make me an offer! I'd prefer low-water or drought-tolerant plants, preferably from So. Africa or So. America, but I'm open to offers for other uncommon plants.