From Johhny Seeds:
"Darkest red leaves and a long harvest window.Thick, crisp, dark red leaves with good flavor. Similar appearance to Magenta except much darker red color, though not quite as sweet. Very slow bolting with excellent tolerance to heat and bottom rot. High resistance to downy mildew races EU 16, 21, 23, 32; US 5–6. MT0-30."
The Garden Market
Grocery, Seed, and Supply from Kansas City's farmers and producers