A few years ago, we purchased seed of Iberis gibralterica, an African perennial candytuft. What we got instead was a lavender flowered form of the annual candytuft, most likely, Iberis umbellata. Imagine, a mail order nursery sending out a mis-identified plant. In our crevice garden, it puts on an early spring, show, before going dormancy by mid-May, so we haven’t found the need to spend time eradicating it. Other than the attractive flowers, we really enjoy the unusual seed pods, which are putting on quite a show this week. Now, we just need to track down seed of the true plant, the perennial, Iberis gibraltarica.
Jelitto has seed of iberis gibraltarica. I’ve been growing it in poor (sandy) soil for a few years now in SE PA, zone 7a, with no problems other than its being an ample self-seeder.
Thanks, but we have enough reseeding annuals.