85 days. Incredibly graceful appearance would qualify Kalibos for the flower garden! But this European variety is eminently useful as well. The conical, long, heart-shaped, 2-pound heads of deep red are on the small side, ideal for a single dish. The color is so beautiful when the leaves are shredded into slaw. Flavor is mild and very sweet. And they’re good keepers as well, allowing you to enjoy your fall harvest well into winter.