Blue waxweed (Cuphea viscosissima), also known as clammy cuphea, is a US native that bears rich violet-purple flowers from early or midsummer into fall on super-sticky, 18- to 24-inch-tall stems. I received seeds under this name ages ago and have been distributing them as such since then. Just recently, after discussions with two customers who really know their stuff, I found out that what I have is not the true C. viscosissima—the main clue being that the flowers are rather larger than those of the species. It may be a hybrid between C. viscosissima and C. lanceolata, or it may not be. All I know is that is purple, and it is a mystery. I was considering dropping it from the shop, but I enjoy growing it and have heard from others who have appreciated it over the years, so I’m now offering it under the name “Purple Mystery”. Full sun to light shade. It is an annual, but it tends to self-sow, so you can enjoy it for years from just one planting.
Collected in July through August 2023. At least 15 seeds. Shipping to US addresses only.
Please read the germination information as well before ordering.